Where do you find grandidierite?

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Noelia Wilderman asked a question: Where do you find grandidierite?
Asked By: Noelia Wilderman
Date created: Thu, Jun 10, 2021 2:56 PM
Date updated: Sat, Jan 22, 2022 4:13 AM

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Top best answers to the question «Where do you find grandidierite»

Since its initial discovery, samples of grandidierite have been found in only a few locations around the world, including Malawi, Namibia and Sri Lanka. But the few gem quality specimens have come mainly from Madagascar. Gemologically, grandidierite is a magnesium aluminum borosilicate.

FAQ

Those who are looking for an answer to the question «Where do you find grandidierite?» often ask the following questions:

✨ Where can i find grandidierite in madagascar?

  • For many years, Cap Andrahomana in southern Madagascar, the type locality, was the only well-known source of gem-quality material. A new find in Tranomaro, also near Cap Andrahomana, has produced transparent, gem-quality grandidierites. Faceted natural grandidierite, Tranomaro, Madagascar.

✨ Where can i find a sample of grandidierite?

  • Since its initial discovery, samples of grandidierite have been found in only a few locations around the world, including Malawi, Namibia and Sri Lanka.

✨ Where can you find a grandidierite in madagascar?

  • Perhaps there has been a big mine opening with these, in Madagascar most likely, but it is still sold and reported as one of the rarest gems in the world, in direct contradiction with hundreds on display. What to make of this? Anybody here who owns a gem quality grandidierite? How much did you pay, and when?

Your Answer

We've handpicked 21 related questions for you, similar to «Where do you find grandidierite?» so you can surely find the answer!

Is it possible to find grandidierite in the ground?
  • Discovering Grandidierite in the ground is difficult enough but when it is mined most of the rough is opaque and the small quantities deemed worthy of becoming gemstones are usually translucent. These are still a rare and beautiful gemstone when cut and polished into cabochons.
Where can i buy grandidierite elite dangerous?

Grandidierite is a rare Mineral Commodity that can be mined from Hotspots in metal rich or icy Planetary Ring Systems.

Are grandidierite rare?

Grandidierite is a rare mineral that was first discovered in 1902 in southern Madagascar.

Is grandidierite cloudy?

Grandidierite Information

Orthorhombic. Crystals elongated and not well formed; massive. Gem material is translucent to transparent. Generally opaque.

Is grandidierite expensive?

Grandidierite ((Mg,Fe 2+)Al 3(BO 3)(SiO 4)O 2) is a very rare gem that can fetch up to $20,000 per carat and was first discovered in Madagascar in 1902.

Is grandidierite valuable?

Grandidierite ((Mg,Fe 2+)Al 3(BO 3)(SiO 4)O 2) is a very rare gem that can fetch up to $20,000 per carat and was first discovered in Madagascar in 1902.

Where are grandidierite gemstones found on the earth?
  • In terms of gemology, grandidierite comprises of a compound of magnesium aluminium borosilicate, which makes its hardness comparable to that of a garnet. It’s thought that grandidierite gemstones are formed and found in pegmatite rocks. These rocks are formed by molten rock or magma bubbling up from below the Earth’s crust to the surface.
Where are grandidierite mined in the oman ocean?

Basically at the time of writing the only gemstone quality Grandidierite is mined in Madagascar although some have been found recently in Sri Lanka which are transparent but so far only very small carat sizes have been produced.

Where are grandidierite mined in the oman sea?

Basically at the time of writing the only gemstone quality Grandidierite is mined in Madagascar although some have been found recently in Sri Lanka which are …

Where are grandidierite mined in the oman today?

Since then, Grandidierite has been mined in a few other places in southern Madagascar, but these have also since depleted. A new deposit of Grandidierite was discovered in May 2014 about 15km from the village of Tranomaro. The area is in the Amboasary district of southern Madagascar’s Anosy region, 60km northwest of Cape Andrahomana.

Where are the grandidierite mines in southern madagascar?
  • Since then, Grandidierite has been mined in a few other places in southern Madagascar, but these have also since depleted. A new deposit of Grandidierite was discovered in May 2014 about 15km from the village of Tranomaro. The area is in the Amboasary district of southern Madagascar’s Anosy region, 60km northwest of Cape Andrahomana.
Where are the grandidierite sea foam gemstone found?
  • They are extremely scarce in any form but transparent specimens even with visible inclusions or flaws are almost impossible to find and reach incredible prices. Grandidierite were first discovered on the fascinating island of Madagascar off the coast of southern Africa.
Where did alfred grandidier get the name grandidierite?
  • Grandidierite (Grand-die-deer-ite) was named after French explorer and naturalist Alfred Grandidier (1836–1912) who studied the natural history of Madagascar. An extremely rare magnesium iron aluminous borosilicate, Grandidierite was first discovered at the cliffs of Andrahomana on the southern coast of Madagascar.
Where did the discovery of grandidierite come from?
  • Since its discovery in 1902, most gem-quality grandidierite has been translucent. Cabochons cut from this material look very attractive and may even appear jade-like. Recent discoveries of transparent material in Sri Lanka (around 2000) and a new deposit in Madagascar (2014) have resulted in beautiful, faceted gemstones.
Where did the discovery of grandidierite take place?
  • Grandidierite is a very rare mineral that was first discovered in southern Madagascar in the early 20th century. Since grandidierite is quite hard, high quality material has been cut as gemstones, making it one of the very rarest gems, in a class with varieties like benitoite, painite, taaffeite and jeremejevite.
Where did the grandidierite stone get its name?
  • An exotic gemstone with a rich history, grandidierite may not be a name that you’re familiar with, but you should be! Grandidierite stones were first discovered in 1902 in the southern part of Madagascar. The stone comprises of rare minerals and is named after Alfred Grandidier.
Where did the mineral grandidierite get its name?
  • Grandidierite is an extremely rare mineral and gem that was first discovered in 1902 in southern Madagascar. The mineral was named in honor of French explorer Alfred Grandidier (1836–1912) who studied the natural history of Madagascar..
Where does the color of grandidierite come from?
  • It was first discovered in Madagascar in 1902 and then in small quantities in other areas of the world, but most grandidierite specimens come from Madagascar. The greenish-blue color of grandidierite is caused by the presence of iron. Grandidierite gemstones are usually faceted and sought after by collectors.
Where is the new deposit of grandidierite located?
  • The new deposit is outside the town of Tranomaro, near the original locality of Andrahomana. It occurs in the form of strong bluish green to greenish blue translucent to transparent crystals measuring up to 15 Ă— 7 Ă— 3 cm. Grandidierite is the magnesium end member in the solid-solution series with ominelite as the iron end member.
Where was the grandidierite deposit found in madagascar?
  • A new deposit of grandidierite was discovered in May 2014 by two of the authors and their mining team, about 15 km from the village of Tranomaro. The area is located in the Amboasary district of southern Madagascar’s Anosy region (again, see figure 2), 60 km northwest of Cape Andrahomana.
Where was the grandidierite mine in madagascar found?
  • Grandidierite was recently reported from a mine near Tolanaro, with no further information yet (Vertriest et al., 2015). A new deposit of grandidierite was discovered in May 2014 by two of the authors and their mining team, about 15 km from the village of Tranomaro.