Help with this pebble?

dragon912

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Help with this pebble?

Submitted by dragon912 on Mon, 08/25/2008 - 12:33.

Please would someone be able to explain about the red/white material going through this pebble?

I have had this for years after my grandfather found it, and it has always puzzled me!

Many thanks

Andy

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Jon

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The curse of the missing

Mon, 08/25/2008 - 12:54

The curse of the missing photo strikes again! See here for info on how to add photos to posts:
/help/how_to_use_geologyrocks/editor

(besides a photo, you could try scratching the red/white material with a steel nail. If it's scratches, it's most likely calcite. If it doesn't, it's quartz. Both a common minerals that occur in veins. The red material is likely calcite/quartz with extra iron).

Geologists are gneiss!!

dragon912

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Thank you Jon, I have

Mon, 08/25/2008 - 13:04

Thank you Jon, I have attached a picture now! Thanks for your help.

Jon

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Looks like a lump of

Mon, 08/25/2008 - 13:21

Looks like a lump of limestone to me. It's therefore likely the vein is calcite. The red is red calcite. Scratching is the only way to be sure though.

(Normal disclaimer that I might be wrong Smiling face )

Geologists are gneiss!!

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