ankerite


Also found in: Dictionary, Thesaurus, Wikipedia.
Related to ankerite: clinochlore, siderite

ankerite

[′aŋ·kə‚rīt]
(mineralogy)
Ca(Fe,Mg,Mn)(CO3)2 A white, red, or gray iron-rich carbonate mineral associated with iron ores and found in thin veins in coal seams; specific gravity is 2.95-3.1. Also known as cleat spar.
References in periodicals archive ?
Replacement bodies in mafic igneous rocks consist of semi-massive to massive pyrite in a gangue of ankerite and sericite, transected by veins of quartz and dolomite.
It means that the studied dolostones and dolomitic marlstones did not include ankerite (Goldsmith & Graf 1958; Reeder & Sheppard 1984; Tucker & Wright 1994) and we could use measurements of [d.
11) Nous avons depouille, pour certaines annees, outre les fiches de la Noranda, celles de la McIntyre Porcupine et de la Buffalo Ankerite de Timmins, de la Sigma Gold Mines de Val-d'Or, de la Beattie Gold Mines de Duparquet et de l'Inco de Sudbury.
The company's projects are situated within two claim blocks, one in the northern part of Tisdale Township (the Davidson Tisdale block located approximately five kilometres southeast of Timmins city centre) and a second block of contiguous claims comprising the Buffalo Ankerite, Fuller, and Paymaster properties located in Tisdale and Deloro Townships roughly nine kilometers to the east-northeast of Timmins city centre.
A digital resource model, including an optimized Whittle Pit, was completed for the Buffalo Ankerite North and South Zones.
The veinlets are filled with grayish ankerite and with kaolinite (possibly younger than ankerite).
What began as a wedding anniversary gift portrait of the Hollinger Houses has developed over the years into The Heritage Series portraying various mine sites such as the Dome, Hoyle Pond, Pamour Royal Oak, McIntyre, Buffalo Ankerite (ink) and many more.
If congruent dissolution of calcite, dolomite or ankerite is assumed, these values should fit a line whose slope would be the stoichiometric relation of the ions in the corresponding mineral phase:
ankerite, siderite, witherite, strontianite, may form if the respective metal cations are available.
Skeletal feldspar grains contain ankerite rhombs, and tiny sphalerite, galena, barite, and siderite crystals.