Rutile

TiO2

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The commonest natural form of titanium dioxide (TiO2), rutile is an important ore of titanium that crystallizes in the tetragonal system. It appears in prismatic, acicular, or geniculated twinned crystals with an adamantine luster, a light-brown streak, good {110} cleavage, and colors from reddish-brown and red to black and golden. Its Mohs hardness is 6 to 6.5 and its specific gravity 4.18 to 4.25. Golden needle-like rutile crystals enclosed in quartz, known as rutilated quartz, are cut as gemstones, and fine rutile inclusions produce the silk that gives rise to star rubies and sapphires. A high specific gravity and adamantine luster distinguish rutile from the darker oxides it can resemble.

Rutile은 이산화티타늄의 가장 흔한 자연 형태이며 티타늄의 중요한 광석이다. 석영 속에 포함된 황금빛 침상 결정(루틸레이티드 쿼츠)은 보석으로 높이 평가된다. 스타 루비와 사파이어의 '실크' 포유체로도 산출된다.

결정계 Tetragonal
광물 분류 04 Oxides and Hydroxides
모스 경도 6.0-6.5
비중 4.18-4.25
색상 Reddish-brown, red, black, golden
광택 Adamantine
조흔색 Light brown
벽개 Good {110}
단구 Conchoidal to uneven
투명도 Translucent
결정 습성 Prismatic, acicular, twinned (geniculated)

모스 경도

Mohs Hardness: 6.0 – 6.5
1 Soft10 Hard
Rutile has a Mohs hardness of 6–6.5 on the 1–10 mineral hardness scale.
모스 경도 Reference Mineral
1 Talc
2 Gypsum
3 Calcite
4 Fluorite
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

결정계

Tetragonal
Rutile crystallizes in the Tetragonal crystal system.
특성 Value
결정계 Tetragonal
Axial Relationships a = b ≠ c, α = β = γ = 90°

Frequently Asked Questions

What is the hardness of Rutile?
Rutile has a Mohs hardness of 6.0-6.5.
What crystal system does Rutile belong to?
Rutile crystallizes in the Tetragonal crystal system.
What color is Rutile?
Rutile is typically Reddish-brown, red, black, golden.
What type of luster does Rutile have?
Rutile exhibits a Adamantine luster.
What is the chemical formula of Rutile?
The chemical formula of Rutile is TiO2.