Almandine / Rhodolite Garnet

ALMANDINE TECHNICAL DATA


Species--------------------------Garnet
Chemical Formula---Fe3Al2(SiO4)3
Birthstone----------------------January
Anniversary Stone------------Second
*
Mohs Scale Hardness--------#7 1/2
Durability--------------------------Good
*
Refractive Index----------------1.79+/-
*
Specific Gravity-----------------4.05+/-
Significance of these* data (FAQ # 5)

RHODOLITE TECHNICAL DATA


Species---------------------------------Garnet
Chemical Formula-----Fe/Mg3Al2(SiO4)3
Birthstone-----------------------------January
Anniversary Stone-------------------Second
*
Mohs Scale Hardness------------#7-7 1/2
Durability---------------------------------Good
*
Refractive Index------------------1.75-1.78
*
Specific Gravity------------------------3.84+/-
Significance of these* data (FAQ # 5)

ALMANDINE / RHODOLITE ADDITIONAL INFORMATION

Color The color of Almandine ranges from a dark brownish to dark purplish red. Rhodolite has the same range of colors but is usually not as dark and exhibits more transparency.

Inclusions

Since Almandine crystals are one of the few materials that can grow in solid rock most of the Almandine is highly included. Only a small percentage of that which is mined has sufficient clarity to be cut into gemstones. Rhodolite crystals, on the other hand have fewer inclusions and have much more transparency.

Sources

Most Almandine on the market is mined and cut in India. Most of the Rhodolite material comes from Africa.

Treatment

Neither of these Garnets are treated.

Care

All Garnets are heat sensitive so a steam cleaner should not be used. Ultrasonic cleaners are usually safe.

Uses

The hardness and durability of both of these Garnets make them suitable for all types of jewelry. The transparency and high refractive index of Rhodolite gives this stone its brilliance and scintillation.

Value

Almandine Garnet is the most common member of the Garnet Group. It is also the most reasonably priced. Rhodolite Garnets, which are less common and are brighter and more clear are at least 50% higher in price.

























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