Rarest 4 Ct Gorgeous Quality Natural Grandidierite

Item Information

Dimensions (mm) 12.6 x 9.4 x 4.55mm
Weight (carats) 4 carats
Colors
No Treatment

Grandidierite was first discovered in 1902 in Madagascar by Alfred Lacroix, a French mineralogist. Lacroix named the mineral in honor of French explorer and naturalist Alfred Grandidier (1836–1912), the first authority on the natural history of Madagascar.

Since its initial discovery, samples of Grandidierite have been found in only a few locations around the world, including Malawi, Namibia and Srilanka. But the few gem quality specimens have come mainly from Madagascar.

Gem-quality Grandidierite is extremely rare, and it often appears on the list of the 10 rarest varieties in the world, along with gems like jeremejevite, painite, benitoite and taafeite.

Gemologically, Grandidierite is a magnesium aluminum borosilicate. It has a hardness of 7 to 7.5 on the Mohs scale, similar to garnet; a density of 2.85 to 3.00, in the approximate range of tourmaline; and a refractive index of 1.590-1.623.

Name: GRANDIDIERITE GEMSTONE

Place of Origin: MADAGASCAR

TREATMENT: NATURAL



You have not bid on this auction.

Closed

1 bid placed so far

$110 gemrockie
Add to Watch List Ask a Question * All prices in USD

Audit Information

The Gemstone Sheriff program allows our members to request an audit on any auction, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.

Pricing & Details

Bid Increment $1
Starting Bid $200
Auction ID 1107003
Watchers 2 watching
Viewed 323 times
Starts 16th Oct 2020 11:00pm PDT
Ends 20th Oct 2020 6:25am PDT

Shipping & Insurance

Provider Shipping Transit
DHL $25.00 10 days
Standard Shipping - Tracked $8.00 25 days
Shipping Insurance all providers $0.00 (optional)

About Turkishdiasporegems

You May Also Like