Grossular is found in contact metamorphosed limestones with vesuvianite, diopside, wollastonite and wernerite. A highly sought after variety of gem garnet is the fine green Grossular garnet from Kenya and Tanzania called tsavorite. ... Misnomers include South African jade, garnet jade, Transvaal jade, and African jade.

How is grossular formed?

Grossular is the calcium aluminum garnet and forms in contact or regional metamorphic environments as does andradite the calcium iron garnet. It is believed that these garnets form from the metamorphism of impure siliceous limestones. ... Hessonite is a red variety of grossular and is also sometimes used as a gem.

Is grossular rare?

Grossular Garnet Information. Isometric. Colorless (rare), white, gray, yellow, yellowish green, green (various shades: pale apple-green, medium apple-green, emerald green, dark green), brown, pink, orange, orange-red, reddish, black.

Where is grossular garnet found?

Grossular garnets are found in a wide variety of locations around the globe. Major economic deposits are found in Kenya and Tanzania where Tsavorite and Merelani Mint garnets are both found. Minor deposits are found in Canada and the United States, Siberia and Sri Lanka. Grossular garnets are not typically treated.

What gives grossular its color?

Grossular is the most varicolored of the Garnets. It has the chemical formula of Ca ₃Al ₂(SiO ₄) ₃ but the calcium may, in part, be replaced by ferrous iron and the aluminium by ferric iron. Pure Grossular is colorless; the wide range of colors in this Garnet is caused by various impurities.

Episode 53 Grossular Garnet

24 related questions found

How much is grossular worth?

Gem-quality Grossular garnets are found in Sri Lanka, Pakistan, South Africa, Tanzania, Russia and the United States. Prices for 1 to 3 carats range from $300 to $2500 per carat.

What does Grossular garnet look like?

Grossular is often dark in color, but it also forms the lightest colored forms of Garnet, and can even be white or colorless. Although not as famous as Almandine and Pyrope, Grossular has some important gem varieties. These include the rare emerald-green Tsavorite and the orange to orange-brown Hessonite.

What is a Grossular Garnet?

Grossular is the garnet mineral that shows the widest range of colors. As pure calcium aluminum silicate it is colorless, but impurities can tint it shades of pink, orange (hessonite), yellow, brown and green (tsavorite).

Is tsavorite a Grossular garnet?

One of the rarest and most prized garnets today is this brilliant green variety of grossular garnet called tsavorite. The most desirable tsavorites are an intense green to blue-green and can sometimes be confused with emerald. Tsavorite is a totally natural gemstone.

What type of rock is Grossular?

Description: Grossular is a member of the garnet family found as pale white, green or tan crystals, most often in marbles, calc-silicate and other metamorphic rocks formed from calcium rich protoliths. MARATHON COUNTY: Small light gray crystals up to 3 mm.

What is pyrope garnet?

The mineral pyrope is a member of the garnet group. ... Pyrope is the only member of the garnet family to always display red colouration in natural samples, and it is from this characteristic that it gets its name: from the Greek for fire and eye.

Is hessonite a fusion?

Hessonite possesses standard Gem abilities including bubbling, shapeshifting, fusion, regeneration, agelessness and superhuman attributes.

Is Rhodolite the same as Garnet?

Put simply, rhodolite garnet is rose-coloured garnet. ... Lighter in hue than most other red garnets, rhodolite can be distinguished from its darker red siblings thanks to its rich rose-to-raspberry tones with subtle purple variations. Chemically, it's a mix of two varieties of red garnet.

What does nephrite look like?

Nephrite can be found in a translucent white to very light yellow form which is known in China as mutton fat jade, in an opaque white to very light brown or gray which is known as chicken bone jade, as well as in a variety of green colors.

What is the rarest color of garnet?

The rarest Garnets are peach, green and clear. The red Garnets are more common.

What is Grossular used for?

It can be used to ease the pains of rheumatism and arthritis as well. They can balance the flow of energy throughout your body from the root to the crown chakra. Grossular Garnet is a stone of commitment and devotion. It can increase your ability to manifest your desires and enhance your creativity.

What color garnet is most valuable?

Vivid red garnets are the most desirable. See this pendant here. Garnets that are vivid red in color are more valuable than others, with a few exceptions such as the brilliant green varieties. Look for a vivid spectral red for the best types of garnets.

Is there a blue Garnet?

Blue Garnet are uniquely beautiful teal (blue-green) gemstones recently unearthed in Tanzania's famous Umba River Valley.

How much is raw Garnet worth?

They tend to range from around $500 a carat with inclusions, up to around $7000 per carat for the larger, clean stones. The most valuable garnet is Demantoid and it's priced near the top of the spectrum.

Is Hessonite Garnet rare?

Is hessonite garnet rare? This garnet is not rare, imperial hessonite is. ... Typical gomed gemstone is orange to red to brown in color. The imperial variety is a beautiful golden color with cinnamon undertones, just spectacular!

Is hessonite a precious stone?

Hessonite (Gomed) Hessonite is a deep brown or honey colored, semi-precious gemstone from the grossular Garnet mineral family. It is worn to overcome negative effects of Rahu as well as to gain power, wealth and success in public careers, jobs and businesses.