606 - Anatase

ID	606
Mineral	Anatase
Location	Lapcha Mine - Neroyka Mt - Tyumen Oblast - Russia
Fluorescence	LW-UV: close SW-UV: close
Mindat.org	View Anatase information at mindat.org

ID	213
Long ID	1:1:213:8
Formula	`TiO₂`
IMA Status	0 1
Description	Anatase is one of the five forms of titanium dioxide found in nature. Compare anatase-columbite solid solution.
Occurrence	Alpine veins, derived from the enclosing gneisses or schists by hydrothermal solutions.
Other Occurrences	Usually secondary, derived from other titanium-bearing minerals. In alpine veins, derived from the enclosing gneisses or schists by hydrothermal solutions. In igneous and metamorphic rocks; in pegmatites; from a carbonatite. A common detrital mineral.
Discovery Year	1801
Diapheny	Transparent,Translucent
Cleavage	on {001} and {011}
Tenacity	brittle
Colour	Brown, pale yellow or reddish brown, indigo, black; pale green, pale lilac, grey, rarely nearly colourless; brown, yellow-brown, pale green, blue in transmitted light.
Hardness (min)	5.5
Hardness (max)	6.0
Luminescence	None
Lustre	Adamantine to metallic-adamantine in darker colored specimens.
About the name	Named in 1801 by Rene Just Haüy from the Greek ανάτασις ("anatasis") for "extension," in allusion to the length of the pyramidal faces being longer in relation to their bases than in many tetragonal minerals.
Streak	White to pale yellow
Crystal System	Tetragonal
Cleavage Type	Perfect
Fracture type	Sub-Conchoidal
Morphology	Crystals typically acute dipyramidal {011}, often highly modified; obtuse pyramidal or tabular on {001}; less commonly prismatic on [001], with {110}, {010}
Twinning	Rare, on {112}
UV	Not fluorescent.
Thermal Behaviour	Before the blowpipe, infusible.
key_elements	0
shortcode_ima	Ant

Symbol	Element
O	Oxygen
Ti	Titanium

Anatase

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