Not sure what to call this

[zoienluv]

Its 4 inches long an the end with the hole is alittle bugger then a quarter an the other end is the size of a nickel around it looks like a regular rock on the outside of it then on the inside of it, it's all crystal on one end there is a hole in the middle of it it's like it has a thin coating of rock covering the crystal inside of it.

 

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[TeAra]

Looks like Calcite stalactite or stalagmite

 

[Moonrover]

How does it react to HCL ?

 

[zoienluv]

How does it react to HCL ?

I'm sorry fill me in on HCL I'm new at this

 

[Brian T. Booth]

I'm sorry fill me in on HCL I'm new at this

This is a calcitic stalagmite or stalactite. HCL is a acid. Also called muriatic acid. Calcite just like all other minerals are chemically made up of elements. Calcite is CaCO3. When you introduce HCL to CaCO3 the acid chemically breaks down the mineral. When the HCL breaks the mineral down it fizzes. It's a simple test to see if the mineral you are dealing with is actually calcite. You can find muriatic acid in your local hardware store. You should make a 5 percent solution to test on rocks and minerals. Be careful the fumes are very dangerous. Read instructions carefully.

 

[zoienluv]

This is a calcitic stalagmite or stalactite. HCL is a acid. Also called muriatic acid. Calcite just like all other minerals are chemically made up of elements. Calcite is CaCO3. When you introduce HCL to CaCO3 the acid chemically breaks down the mineral. When the HCL breaks the mineral down it fizzes. It's a simple test to see if the mineral you are dealing with is actually calcite. You can find muriatic acid in your local hardware store. You should make a 5 percent solution to test on rocks and minerals. Be careful the fumes are very dangerous. Read instructions carefully.

Cool thanks I was thinkin that was what it was but wasn't sure so I figured I would ask about it my dad actually has sum at his house so I will get it an check it out I appreciate it alot

 

[NJnuggetpirate]

Very cool color

 

[unclemac]

i think i am seeing rings too....

 

[zoienluv]

i think i am seeing rings too....

Yes there is rings in it also

 

[Brian T. Booth]

i think i am seeing rings too....

The rings are growth patterns. That is how the stalagmite / stalagmite "grows".