brookite

Name:

brookite

A photo of the mineral brookite

Class:

Oxide/Hydroxides

Chemistry:

TiO2

Color(s):

dark brown to greenish brown streak: brown-white

Hardness:

5.5 - 6

SpecGrav:

3.9 - 4.1

Fracture:

uneven

Cleavage:

poor

Crystal:

orthorhombic - platy, complex crystals form id elongated in one direction, Can form pseudo hexagonal looking crystals.

Envronment:

Association:

chalcopyrite, hematite, anatase, rutile, quartz, feldspars, sphene

Locals:

| Austria | England | Switzerland | Russia | Arkansas, New York, Montana, USA |

Misc:

Named for the English mineralogist Henry James Brucke (1771-1857)

Photos
& Locals:

1.) Magnet Cove, Arkansas
2.) Magnet Cove, Arkansas

3.) Magnet Cove, Arkansas
4.) Magnet Cove, Arkansas

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Name:	brookite
Class:	Oxide/Hydroxides
Chemistry:	TiO2
Color(s):	dark brown to greenish brown streak: brown-white
Hardness:	5.5 - 6	SpecGrav:	3.9 - 4.1
Fracture:	uneven	Cleavage:	poor
Crystal:	orthorhombic - platy, complex crystals form id elongated in one direction, Can form pseudo hexagonal looking crystals.
Envronment:
Association:	chalcopyrite, hematite, anatase, rutile, quartz, feldspars, sphene
Locals:	\| Austria \| England \| Switzerland \| Russia \| Arkansas, New York, Montana, USA \|
Misc:	Named for the English mineralogist Henry James Brucke (1771-1857)

	Photos & Locals:
		1.) Magnet Cove, Arkansas 2.) Magnet Cove, Arkansas		3.) Magnet Cove, Arkansas 4.) Magnet Cove, Arkansas

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