Mariangela 101 Posted December 1, 2015 Share Posted December 1, 2015 (edited) Hello guys! I just found my cousin's rock collection.They were wrapped in newspapers so some grey stains must be cause of that I guess. Could you assist me in identifying them? Thank you in advance! Edited December 1, 2015 by Mariangela 101 Quote Link to comment Share on other sites More sharing options...
GeoJack Posted December 1, 2015 Share Posted December 1, 2015 Start here grasshopper. Quote Link to comment Share on other sites More sharing options...
adam Posted December 2, 2015 Share Posted December 2, 2015 Im going to say that many of the specimens are from Mexico....I can see some possible Dioptase, calcite, Fluorite, Siderite, Azurite, and Hemimorphite, and possibly Vanadinite.. As for the fissil in the first picture, I`m not sure .. Quote Link to comment Share on other sites More sharing options...
Uncle Ron Posted December 2, 2015 Share Posted December 2, 2015 Nice collection and, no doubt a few are valuable for collectors ... Find someone through the forum who knows about this ... I'm not him...! Quote Link to comment Share on other sites More sharing options...
4meter Posted December 2, 2015 Share Posted December 2, 2015 Hello Mariangela 101 and thanks for posting the pics of this wonderful mineral collection.Did your cousin write anything down about this collection? Sometimes just knowing where the minerals came from allows an ID, plus it increases the value of the collection. Provenance is very important to a collection & to future collectors.Here is my stab at identifying some of these minerals:1 or 27 - modern tabulate corals7 of 27 - Azurite (copper carbonate) with epidote12 of 27 - Siderite (left) & one of the following Dioptase or Diopsite or Fushite (green muscovite)(right side)13 of 27 - Hematite (right)16 of 27 - Chrysocolla17 of 27 - Azurite21 of 27 - Proustite (Ruby Silver, a silver ore)22 of 27 - Fluorite23 of 27 - Fluorite24 of 27 - Wolfenite27 of 27 - Prehnite (green mineral)Many of these minerals look like they have been in storage for a long time & in need a professional cleaning.Can you take some close-ups of the minerals? Being able to see individual crystals or crystal clusters is a big help in ID. Quote Link to comment Share on other sites More sharing options...
rockhunter1620 Posted December 4, 2015 Share Posted December 4, 2015 (edited) Your photo #1, 'round these parts, known as the classic "petosky stone", found in abundance in northern Mi. but usually worn smooth by water like a river cobble. Edited December 4, 2015 by rockhunter1620 Quote Link to comment Share on other sites More sharing options...
4meter Posted December 4, 2015 Share Posted December 4, 2015 I'm starting to think 8 & 9 of 27 could be the mineral - Aragonite, due to the white to clear color and "dendritic" or "coral" like shape. Anyone? Quote Link to comment Share on other sites More sharing options...
Mariangela 101 Posted December 4, 2015 Author Share Posted December 4, 2015 Thanks for the replies so far guys. Unfortunately I threw away the labels as they seemed like gibberish before I unfold them. I would like to replace his etiquettes and try and resort them :( Quote Link to comment Share on other sites More sharing options...
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