Pyrargyrite

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Physical & Optical Properties

Category Collector Gems
Mohs Hardness 2.5 – 3.0
Specific Gravity 5.85
Refractive Index 2.881 – 3.084
Crystal System Trigonal
Cleavage Indistinct
Fracture Conchoidal
Color various
Birefringence 0.203
Pleochroism Strong

Mohs Hardness

1 Talc 2 Gypsum 3 Calcite 4 Fluorite 5 Apatite 6 Orthoclase 7 Quartz 8 Topaz 9 Corundum 10 Diamond Pyrargyrite
Mohs hardness of Pyrargyrite shown against the ten reference minerals, from talc (1) to diamond (10).
Mohs Reference mineral Pyrargyrite
1 Talc
2 Gypsum
3 Calcite
4 Fluorite
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

Crystal System

a a a Trigonal (Rhombohedral) a = b = c, α = β = γ ≠ 90°

Value & Market

Price Tier Budget (< $50/ct)

Where to Buy Pyrargyrite

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About Pyrargyrite

ピラルジャイト(暗礬銀鉱、「ダークルビーシルバー」)は、深ルビー赤〜黒色の銀硫砒塩鉱物でダイヤモンド〜金属光沢を持ち、薄い破片では特徴的な赤い透光性を示します。銀の熱水鉱脈に産し、ドイツ・ボリビア・メキシコ・カナダが著名産地で、銀の重要な鉱石鉱物の一つです。六方柱状の完全な結晶はコレクター向け赤色鉱物標本の中で最高峰のものとされています。

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Frequently Asked Questions

What is Pyrargyrite?
ピラルジャイト(暗礬銀鉱、「ダークルビーシルバー」)は、深ルビー赤〜黒色の銀硫砒塩鉱物でダイヤモンド〜金属光沢を持ち、薄い破片では特徴的な赤い透光性を示します。銀の熱水鉱脈に産し、ドイツ・ボリビア・メキシコ・カナダが著名産地で、銀の重要な鉱石鉱物の一つです。六方柱状の完全な結晶はコレクター向け赤色鉱物標本の中で最高峰のものとされています。
What is the hardness of Pyrargyrite?
Pyrargyrite has a Mohs hardness of 2.5 to 3.0, making it relatively soft for use in jewelry.
What color is Pyrargyrite?
Pyrargyrite is primarily Various.
How much does Pyrargyrite cost?
Pyrargyrite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Pyrargyrite?
Pyrargyrite belongs to the Trigonal crystal system.