This stone has RI 1.705 and SG 4.09. I think it is a Garnet. In photo "inclusions 2" we can see enlarged inclusions and in photo "inclusions 3" there is one triangular (in the white cycle). Can it be triangular platinum crystals of Pulled synthetics ? In photo "inclusions 4" we can see curve striae. Are there synthetic Garnets or the stone is not a Garnet ?
Thanks
Attachments:
Inclusions 2.jpg [ 21.01 KiB | Viewed 1315 times ]
Inclusions 3.jpg [ 40.41 KiB | Viewed 1315 times ]
Inclusions 4.jpg [ 35.59 KiB | Viewed 1315 times ]
"With a RI at 1.705 it is very unlikely that the stone be a garnet. Or did you mean 1.750 ?"
Isi, hi I am not gemologist. I studied agriculturalist. It is 1.705 and i said Garnet, because i read it on "Refractive Idex Reference Chart" of the company i bought my Refractometer. It says 1.696 to 2.030 for general Garnet.
Too low for garnet, pyrope garnets typically start at 1.714, but since they almost always form w/ almandine, you typically see these reddish pyrope/almandine ~1.74ish or higher (more like 1.77) inclusions look natural, but unless the reading was incorrect... the hunt continues
Joined: Sat Jul 11, 2009 10:29 am Posts: 928 Location: USA
Judging from inclusions, surface condition and facet junctions, coloration, and data you supplied, look towards Willemite as a possibility. Not commonly seen faceted, but the inclusions are possible, brittle so facet junctions being abraded are likely, etc.
Users browsing this forum: No registered users and 13 guests
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum