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Pyrope Garnets (Brownish Red)

Pyrope Garnets (Brownish Red)

 

Pyrope is a member of the Garnet group, and it makes a popular dark red gemstone. Pyrope is often free of flaws with good transparency, making it an important jewelry gemstone. Pyrope is much rarer than its Almandine counterpart, but it is generally more transparent and has less flaws than Almandine. A well-known environment of Pyrope is kimberlite pipes, where it can be associated together with Diamonds.

 

Chemical Formula

Mg3Al2Si3O12

Composition

Magnesium aluminum silicate. The magnesium is often partially replaced with some iron, and sometimes also with manganese.

Variable Formula

(Mg,Fe,Mn)3Al2Si3O12

Color

Deep red to nearly black; rose-red to violet.

Streak

Colorless

Hardness

7 - 7.5

Crystal System

Isometric

3D Crystal Atlas
(Click for animated model) 

Dodecahedral

Trapezohedral

Modified Dodecahedral

Dodecahedral with Growth Layers

Modified Trapezohedral

 

Crystal Forms 
and Aggregates

As single dodecahedral and trapezohedral crystals, and sometimes with slight growth modifications. Crystals are usually rounded or distorted, and are only occasionally well-formed. Also in dense crystal aggregates and in grainy form. Crystals are usually embedded unless found inplacer deposits, where they are single and rounded.

Transparency

Transparent to nearly opaque

Specific Gravity

3.5 - 3.6

Luster

Vitreous

Cleavage

None

Fracture

Conchoidal to uneven

Tenacity

Brittle

In Group

SilicatesNesosilicatesGarnet Group

Striking Features

Color, crystal form, hardness, and localities

Environment

In intrusive igneous ultramafic rocks such as peridotite and kimberlite. Also in ultrahigh-pressuremetamorphic rocks and in placer deposits.

Popularity (1-4)

2

Prevalence (1-3)

2

Demand (1-3)

1

 

 

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Dark Red Pyrope Garnet - Oval - 1.62 Carats
Appealing Oval shaped Dark Red Pyrope Garnet gemstone with evenly spread natural color and excell..
$18.00
Ex Tax: $18.00


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