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 Post subject: Identification requested
PostPosted: Fri Feb 23, 2018 12:28 pm 
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Joined: Sun Oct 16, 2005 12:22 pm
Posts: 20554
Location: San Francisco
I got an email this morning from a gal who inherited several minerals and wanted our help in identification:

unknown1.jpg [ 144.88 KiB | Viewed 1792 times ]
unknown2.jpg [ 133.5 KiB | Viewed 1792 times ]
unknown3.jpg [ 124.97 KiB | Viewed 1792 times ]
unknown4.jpg [ 119.91 KiB | Viewed 1792 times ]
unknown5.jpg [ 134.79 KiB | Viewed 1792 times ]
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 Post subject: Re: Identification requested
PostPosted: Sat Feb 24, 2018 8:26 pm 
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Joined: Mon Apr 02, 2012 9:31 pm
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Location: North Carolina
1: ???
2: ???
3: tourmaline on matrix
4: ???
5: gotta be beryl or apatite, probably.
6: ??? probably quartz but not enough focus to make out crystal form
7-10: tourmaline


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 Post subject: Re: Identification requested
PostPosted: Tue Feb 27, 2018 2:22 am 
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Joined: Tue Jun 03, 2008 4:40 pm
Posts: 2667
Location: South Dakota
Lets see...
9 and 10 seem like they could be the same crystal at different angles.
Tourmaline, like Stephen said.
7 and 8 are tourmaline with 8 having cleavelandite on it, I think.
5 looks like beryl, as Stephen mentioned.
6 looks like those clusters of quite rare pink quartz crystals, that usually come from Brazil or Maine.
3 is clearly pink tourmaline spray in matrix.
4 is not...well...hmmm...sort of looks like an apatite crystal to me, laying on it's side, with it's termination on the right side and it's base on the left. It seems like it's been broken in half and sitting on the broken side as is.
2 might be epidote crystals, since the classic epidote-like striations seem present, and the fact some are bent crystals helps to make me think epidote.

How about the green zoisite like that from pakistan?? Nah...epidote
Number 1 a complete guess pretty much...pollucite?

MrAmethystguy ~ Some jokes just fluorite over my head!

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 Post subject: Re: Identification requested
PostPosted: Wed Mar 14, 2018 12:47 pm 
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Joined: Sun Jun 28, 2009 9:56 am
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before thinking of rare or precious species, I always consider common ones, for instance fluorite as number one (although I wouldn't rule out beryl), and maybe actinolite as number two. But it's hard to tell (pics are a little too blury to show details such as cleavages, and basic hardness test -against copper and glass at least- would always help to rule out a few candidates)

Tourmalines (pink and black) are quite obvious (3, 7, 8, 9, 10) , 6 is quartz, and number 5 is most likely either apatite or beryl

For number 4 I will refrain from suggesting a handful of candidates (useless without further testing), but I'll outline that, from the picture, it seems to show adamantine or sub-adamantine luster (suggesting rather high RI), which (if that is correct interpretation of the pic) should narrow the choice.

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