Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Ilmenite from
Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Glenelg Shire, Victoria, Australia


08562820017272730186812.jpg
Ilmenite, etc.

Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Glenelg Shire, Victoria, Australia
02172600017272034201652.jpg
Ilmenite, etc.

Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Glenelg Shire, Victoria, Australia
07707660017360848887555.jpg
Ilmenite, etc.

Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Glenelg Shire, Victoria, Australia
08562820017272730186812.jpg
Ilmenite, etc.

Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Glenelg Shire, Victoria, Australia
03337840017361344958343.jpg
Ilmenite, etc.

Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Glenelg Shire, Victoria, Australia
08550620017361344957571.jpg
Ilmenite, etc.

Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Glenelg Shire, Victoria, Australia
08562820017272730186812.jpg
Ilmenite, etc.

Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Glenelg Shire, Victoria, Australia
02172600017272034201652.jpg
Ilmenite, etc.

Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Glenelg Shire, Victoria, Australia
07707660017360848887555.jpg
Ilmenite, etc.

Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Glenelg Shire, Victoria, Australia
Locality type:Quarry
Classification
Species:Ilmenite
Formula:Fe2+TiO3
Comments:"Ilmenite is the dominant mineral in only a few cavities and is usually less prominent than andesine and augite. It generally forms thin, lustrous, black, hexagonal platy crystals up to 0.5 cm across but twinning may give rise to 'saw toothed' and spear shaped forms. The crystals usually show growth lines on their flat faces."
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Albite8
- var Andesine8
Augite7
Calcite2
Hematite2
Chabazite-Na1
Apatite1
Data
Mineral Data:Click here to view Ilmenite data
Locality Data:Click here to view Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Glenelg Shire, Victoria, Australia
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:88192
Long-form Identifier:1:3:88192:8
GUID (UUID V4):0
Nearest other occurrences of Ilmenite
56.6km (35.2 miles) ⓘTarrone Quarry, Moyne Shire, Victoria, Australia
References
Birch, W.D., Smith, N., Hately, J. (1982): Andesine, Augite and Ilmenite in vesicles in an alkali olivine basalt from Portland, Victoria. The Australian Mineralogist 37, 195-198.
Birch, W. D. - Ed. (1989) Zeolites of Victoria. Special Publication No.2. Mineralogical Society of Victoriapp.86-89
 
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