Some New Finds

[MrLee]

From the Barstow, Ca area.

1. I think it's colemanite.


2. Stumped...

 

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[mamabear]

could be colemanite. Though it looks milkier than the samples in my book. The other? I'm with you. ?? I can't really see what the structure is.

 

[Eu_citzen]

Why do you think it's colemanite?

Hardness? Acid test? First thought is calcite from that picture.

Do a streak- and hardness test on the second one. (or if you got a spare piece to try on - else do it somewhere not so easily visible)

 

[MrLee]

The reason I thought it's colemanite is because of the area it is from.

 

[Brian T. Booth]

From the Barstow, Ca area. 1. I think it's colemanite. <img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=913880"/> 2. Stumped... <img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=913881"/><img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=913882"/>

The first one I think is calcite. The second is hematite. Below is a specimen of hematite similar to your specimen. Great finds