Creedite

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Physical & Optical Properties

Mohs Hardness 4.5
Specific Gravity 2.7
Refractive Index 1.461 – 1.485
Crystal System Monoclinic
Luster Vitreous
Cleavage Perfect
Fracture Uneven,Conchoidal
Color various
Birefringence 0.021

Mohs Hardness

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

Crystal System

β a b c Monoclinic a ≠ b ≠ c, α = γ = 90°, β ≠ 90°

Value & Market

Price Tier Budget (< $50/ct)

About Creedite

白硼钙石是一种稀有的钙铝氟硫酸盐矿物,以其精美的放射状晶簇而备受收藏家青睐。晶体通常呈无色、白色或淡紫色,形成针状或棱柱状晶形,排列成华丽的球形或放射状聚合体。白硼钙石主要产于干旱地区的氧化带,以美国、墨西哥和阿根廷产地最为著名,是矿物收藏界的珍稀品种。

Science FYI Family

Frequently Asked Questions

What is Creedite?
白硼钙石是一种稀有的钙铝氟硫酸盐矿物,以其精美的放射状晶簇而备受收藏家青睐。晶体通常呈无色、白色或淡紫色,形成针状或棱柱状晶形,排列成华丽的球形或放射状聚合体。白硼钙石主要产于干旱地区的氧化带,以美国、墨西哥和阿根廷产地最为著名,是矿物收藏界的珍稀品种。
What is the hardness of Creedite?
Creedite has a Mohs hardness of 4.5, making it relatively soft for use in jewelry.
What color is Creedite?
Creedite is primarily Various.
How much does Creedite cost?
Creedite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Creedite?
Creedite belongs to the Monoclinic crystal system.

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