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Identity HelpRocks to be identified

2nd Mar 2017 03:12 UTCBen Youssef Malek

02733970016065309526114.jpg
Hi all

I would like to get help identifying these rocks , are they agate or Jasper or something else.

Thank you

Malek


06672540015652949474638.jpg

07401910015652949476327.jpg

2nd Mar 2017 03:14 UTCBen Youssef Malek

03993510016065309527243.jpg
More photos.


07835010015652949473234.jpg

2nd Mar 2017 03:38 UTCAlfredo Petrov Manager

Chalcedony is what I would call it. Good lapidary material.

2nd Mar 2017 03:56 UTCKyle Beucke 🌟

Obviously fine-grained silica, but with that glassy appearance, couldn't it be opal?


Kyle

2nd Mar 2017 05:21 UTCVolkmar Stingl

I would call it agate.

2nd Mar 2017 07:03 UTCTom Goodland

Maybe call it Jaspagate (a pretty horrible word!)

2nd Mar 2017 17:13 UTCTravis Hetsler

These are moss or garden agates. Look at Woodward Ranch locality for examples of the same.

2nd Mar 2017 21:20 UTCEd Clopton 🌟 Expert

They look like either chalcedony (ultra-fine-grained quartz) or perhaps opal. In the lapidary world, agate is a variety of chalcedony with colorful patterns, especially (or to a purist, only) having concentric or parallel bands of contrasting color. Jasper usually refers to colorful (especially, but not exclusively, red) varieties of the rock chert, itself consisting primarily of chalcedony and any of a range of impurities. I would call these samples chalcedony since they lack the distinct banding of agate and except for the second photo they are more transparent than most jasper, but not everybody will agree.
 
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