stone cannonball found

[rockcollect]

WOW i have found a stone cannonball in the river waal across Nijmegen and i have full proof this time. see screenshot. I found this cannonball on the oposite side of Nijmegen on the Waal beach among rubble that came from the center of Nijmegen and was once dumped on the Waal beach. There were also many old bricks mixed in. My stone cannonbal is also made of trachyte and it clearly has been used in anger because of the missing underside. So it is part of a siege in nijmegen in the 13th-14th century.It is now half round and is 12,5 cm wide. super cool. This is the translation of the tekst found on the internet:

This cannonball recently surfaced during an inventory of excavations at Kelfkensbos from 1997.The diameter is approx. 13 cm, the weight just under 3 kg, and the stone type is trachyte.Information from archaeologist Arjan den Braven: The cannonball originates from the novum fossatum, a defensive ditch that was dug around the middle of the 13th century and, based on the stoneware and pottery found in the ditch fill, must have been filled in as early as the third quarter of the 14th century. Consequently, the cannonball likely dates from the time when the trebuchet (medieval name for a catapult) was gradually replaced by the cannon. That the cannonball was actually used during combat is suggested by a flattened side, which was almost certainly caused by the cannonball ricocheting off a hard surface (stone wall?) at high speed.

 

[rockcollect]

trachyte: https://sandatlas.org/trachyte/

 

[DizzyDigger]

well by the lack of reactions i assume it is not a cannonball. wrong again i think i am done with posting useless.

The text you quoted...was that about your specific find?

It has the roundness, but I am no specialist on such things.

 

[Treasure_Hunter]

Just my personal opinion, doesn't look like a cannonball to me, couple of pics (2 & 4) show it to be a little too oblong to me, but I'm by no means an expert...

 

[beepbleep]

Study up on natural concretions. You could crack it open, there might be a fossil inside.

 

[Tesorodeoro]

well by the lack of reactions i assume it is not a cannonbal. wrong again i think i am done with posting useless.

Let me get this straight. You post a find on Sunday the 5th of July and you’re frustrated there is no action on the thread? Just so you know MANY of the participants here are Americans and are winding down from celebrations and on the road traveling. Looks like a round rock to me, but what do I know? Perfectly round rocks along a river are not un-heard of.

 

[rockcollect]

The text you quoted...was that about your specific find?

It has the roundness, but I am no specialist on such things.

it is defently a half round stone made out of trachyte. and the first part of the tekst is about my find and the second part of the tekst is about the other stone found in nijmegen also made out of trachyte. see the last photo.

 

[rockcollect]

Just my personal opinion, doesn't look like a cannonball to me, couple of pics (2 & 4) show it to be a little too oblong to me, but I'm by no means an expert...

that would be distortion of the photo i think, defently half round and there are more pieces around there of that trachyte and they are all sharp broken angular pieces, never round.

 

[rockcollect]

Study up on natural concretions. You could crack it open, there might be a fossil inside.

no concretion it is trachyte, look it up on google and see the big angular crystals in my specimen.

 

[rockcollect]

Let me get this straight. You post a find on Sunday the 5th of July and you’re frustrated there is no action on the thread? Just so you know MANY of the participants here are Americans and are winding down from celebrations and on the road traveling. Looks like a round rock to me, but what do I know? Perfectly round rocks along a river are not un-heard of.

half round rock, all the other pieces of trachyte there are angular broken pieces. trachyte was a building material in the medieval period and they made cannonbals out of it too.

 

[Treasure_Hunter]

that would be distortion of the photo i think, defently half round and there are more pieces around there of that trachyte and they are all sharp broken angular pieces, never round.

No sir, not photo distortion. Look at pictures 2 and 4...

 

[beepbleep]

no concretion it is trachyte, look it up on google and see the big angular crystals in my specimen.

You see, when we try to help you you get combative instead of accepting opinions. Are you sure you haven't found another meteorite? Good luck in your quests young man. Oh look, a flying saucer!

 

[Gare]

Pass

 

[releventchair]

WOW i have found a stone cannonball in the river waal across Nijmegen and i have full proof this time. see screenshot. I found this cannonball on the oposite side of Nijmegen on the Waal beach among rubble that came from the center of Nijmegen and was once dumped on the Waal beach. There were also many old bricks mixed in. My stone cannonbal is also made of trachyte and it clearly has been used in anger because of the missing underside. So it is part of a siege in nijmegen in the 13th-14th century.It is now half round and is 12,5 cm wide. super cool. This is the translation of the tekst found on the internet:

This cannonball recently surfaced during an inventory of excavations at Kelfkensbos from 1997.The diameter is approx. 13 cm, the weight just under 3 kg, and the stone type is trachyte.Information from archaeologist Arjan den Braven: The cannonball originates from the novum fossatum, a defensive ditch that was dug around the middle of the 13th century and, based on the stoneware and pottery found in the ditch fill, must have been filled in as early as the third quarter of the 14th century. Consequently, the cannonball likely dates from the time when the trebuchet (medieval name for a catapult) was gradually replaced by the cannon. That the cannonball was actually used during combat is suggested by a flattened side, which was almost certainly caused by the cannonball ricocheting off a hard surface (stone wall?) at high speed.

[That the cannonball was actually used during combat is suggested by a flattened side, which was almost certainly caused by the cannonball ricocheting off a hard surface (stone wall?) at high speed.]

Sandstone run along a bastion might erode a little if it quit spinning or rolling. Your flat spot is enough I'd want a demonstration of a wall causing it. It would be quite a low odds proposition to arrest the tendency to roll if a great enough angle was struck as opposed to fracture on impact caused by a lesser angle.

The Dutch experimented with and advanced some use of wooden bullets. No strangers to innovation they too were for more than economics.
Stone cannon fodder was an economic arrangement but too; stone shatters on high impact with a hard object . (The tool rule of a cutting tool needing to be harder than the material being cut may well apply here.)
Sandstone examples exist and the fragmentation of such a ball splattering on a wall would have anyone near squinting after. Of course harder materials like those pictured were used too. Still like granite; able to fragment.

The linked article below reads much like your O.P..
The location . The potential source (rubble).
Including the brick mention....

[WOW i have found a stone cannonball in the river waal across Nijmegen and i have full proof this time. see screenshot. I found this cannonball on the oposite side of Nijmegen on the Waal beach among rubble that came from the center of Nijmegen and was once dumped on the Waal beach. There were also many old bricks mixed in.]

'Highly unusual' cannonball cache found at construction site in coastal city may be world's first

Archaeologists uncovered around 450 medieval cannonballs at a Belgian construction site, calling the discovery in Nieuwpoort "highly unusual." Here are details.

www.foxnews.com

 

[releventchair]

Granite to fragment.

stone cannonballs

I have bought three granite stone cannonballs and they are most likely from Groningen North Netherlands. Because the Groninger museum has similar cannonballs, see example

www.treasurenet.com

 

[rockcollect]

You see, when we try to help you you get combative instead of accepting opinions. Are you sure you haven't found another meteorite? Good luck in your quests young man. Oh look, a flying saucer!

maybe it is a flying saucer and meteorite and cannonball in one. very rare indeed hahaha

 

[rockcollect]

[That the cannonball was actually used during combat is suggested by a flattened side, which was almost certainly caused by the cannonball ricocheting off a hard surface (stone wall?) at high speed.]

Sandstone run along a bastion might erode a little if it quit spinning or rolling. Your flat spot is enough I'd want a demonstration of a wall causing it. It would be quite a low odds proposition to arrest the tendency to roll if a great enough angle was struck as opposed to fracture on impact caused by a lesser angle.

The Dutch experimented with and advanced some use of wooden bullets. No strangers to innovation they too were for more than economics.
Stone cannon fodder was an economic arrangement but too; stone shatters on high impact with a hard object . (The tool rule of a cutting tool needing to be harder than the material being cut may well apply here.)
Sandstone examples exist and the fragmentation of such a ball splattering on a wall would have anyone near squinting after. Of course harder materials like those pictured were used too. Still like granite; able to fragment.

The linked article below reads much like your O.P..
The location . The potential source (rubble).
Including the brick mention....

[WOW i have found a stone cannonball in the river waal across Nijmegen and i have full proof this time. see screenshot. I found this cannonball on the oposite side of Nijmegen on the Waal beach among rubble that came from the center of Nijmegen and was once dumped on the Waal beach. There were also many old bricks mixed in.]

View attachment 2258939

'Highly unusual' cannonball cache found at construction site in coastal city may be world's first

Archaeologists uncovered around 450 medieval cannonballs at a Belgian construction site, calling the discovery in Nieuwpoort "highly unusual." Here are details.

www.foxnews.com

the object as i may better call it, is a 100% made out of trachyte altough it maybe not visible in the photoś . It has huge crystals and voids where crystals have been. On that beach in between the rubble are lots of angular fragments of trachyte which was used as building material in the city. I think my object has been shaped by man and has indeed a broken spot and flat spot from a possible impact but i am no expert. have send a massage to the archologie department in nijmegen. waiting for an answer.

 

[rockcollect]

No sir, not photo distortion. Look at pictures 2 and 4...

you are correct but i could be the result of broken off pieces whereby it is no longer perfectly round . maybe not visible on the photo's. see my last post below.

 

[releventchair]

the object as i may better call it, is a 100% made out of trachyte altough it maybe not visible in the photoś . It has huge crystals and voids where crystals have been. On that beach in between the rubble are lots of angular fragments of trachyte which was used as building material in the city. I think my object has been shaped by man and has indeed a broken spot and flat spot from a possible impact but i am no expert. have send a massage to the archologie department in nijmegen. waiting for an answer.

A load of shot (lead for example) despite being cushioned by a wad in a modern shotgun load gets jostled during firing and traveling through space after shedding wad. More severely damaged pellets can and likely will become 'fliers". Straying away from the bulk of the impact pattern of the more uniform shot/projectiles.
Some duplex loads use deliberately unround shot to open up the pattern.

IF we tossed a couple dozen stones at once with a trebuchet net or a catapult and had a couple deliberately flat on one side stones what should we expect of their trajectories?
( In a crowd of opposing force it would be demoralizing getting a troop conked by a rock far from the area being targeted. But for the opposition a more effective use of limited equipment by making it appear more is involved..)

OR maybe they were just running out of rocks of the right weight after rounding.

 

[rockcollect]

A load of shot (lead for example) despite being cushioned by a wad in a modern shotgun load gets jostled during firing and traveling through space after shedding wad. More severely damaged pellets can and likely will become 'fliers". Straying away from the bulk of the impact pattern of the more uniform shot/projectiles.
Some duplex loads use deliberately unround shot to open up the pattern.

IF we tossed a couple dozen stones at once with a trebuchet net or a catapult and had a couple deliberately flat on one side stones what should we expect of their trajectories?
( In a crowd of opposing force it would be demoralizing getting a troop conked by a rock far from the area being targeted. But for the opposition a more effective use of limited equipment by making it appear more is involved..)

OR maybe they were just running out of rocks of the right weight after rounding.

Just got a response of my local archeology department:
Good morning ,Thank you for your message.This is indeed a cannonball.We have looked into the matter; you will find more information about this type of find in the attachment.Kind regards,Erik DupontSecretary AWN-16
attached photo with that mail below