Wonogiri common opal from Indonesia.

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Iskandarman
Posts: 78
Joined: Mon Jan 11, 2016 12:34 pm

Wonogiri common opal from Indonesia.

Post by Iskandarman »

Got these today... Very dark transparent green, white and honey opals from Manggal hill, Tirtomoyo, Wonogiri, Indonesia.
It is worth to cut into cabochon?
Attachments
Fire opal mines,  Manggal hills
Fire opal mines, Manggal hills
Raw Wonogiri common opal
Raw Wonogiri common opal
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PinkDiamond
Posts: 15411
Joined: Thu Jun 04, 2015 9:30 pm
Location: Ozark Mountains

Re: Wonogiri common opal from Indonesia.

Post by PinkDiamond »

Gosh, it's hard to say judging from a photo, but they look big enough to give it a try and see what you get, being prepared to accept that they may not be worth all the work. Did you dig them up yourself or buy them? Let us know what you do with them. ;)
PinkDiamond
ISG Registered Gemologist


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Iskandarman
Posts: 78
Joined: Mon Jan 11, 2016 12:34 pm

Re: Wonogiri common opal from Indonesia.

Post by Iskandarman »

Purchase from the miner. Cheap but mostly milky white and transparent dark green. I found small hyalite welded together with green opal :)
Iskandarman
Posts: 78
Joined: Mon Jan 11, 2016 12:34 pm

Re: Wonogiri common opal from Indonesia.

Post by Iskandarman »

Finished common opals
Attachments
Milky opal
Milky opal
Hyalite inclusions?
Hyalite inclusions?
Black opal (very dark green)
Black opal (very dark green)
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