calc-silicate

[′kalk ′sil·ə·kət]

(geology)

Referring to a metamorphic rock consisting mainly of calcite and calcium-bearing silicates.

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References in periodicals archive ?

Regional assessment of Marble and calc-silicate rocks of Rajasthan.

SCIENTIFIC EXAMINATION OF MARBLE FRETWORK FROM JAHANGIR TOMB, LAHORE, PAKISTAN

This strong calc-silicate alteration, that includes garnet, has proven to be a good indicator of base metal mineralisation at Jervois, suggesting close proximity to mineralisation.

KGL Resources (ASX:KGL) New Mineralised Copper Zone Discovered at Jervois

According to the company, although graphite has been identified locally in marbles, graphite is also hosted here in quartz, biotite/mica gneisses and in calc-silicate gneisses.

Lithium Corporation reports purchase of BC Sugar prospect in British Columbia

The ADD is a 100-300 m-thick mylonite zone of interlayered quartzite, marble, calc-silicate and leucogranites.

Strain partitioning during dome formation in the Himalaya: Insights into the Ama Drime Massif and Leo Pargil dome, NW India

If the protolith is siliceous carbonate, then calc-silicate minerals will be part of the mineral paragenesis.

Brucite--Industrial Mineral with a future

However, we have also found zeolites in various granitic pegmatites, nepheline syenitic pegmatites, fractured diabase dikes, calc-silicate gneisses and fenites in the same area, and in agpaitic rocks and calc-silicate skarns in the CMBBZ.

Zeolite occurrences in the Central Metasedimentary Belt of the Grenville Province, Ontario, Quebec and New York State

But impure marbles (containing silicate and calc-silicate minerals) can be challenging to slab and polish, especially if the impurities occur as patches rather than being finely disseminated.

The Elegant Stone

The gold is localized in calc-silicate altered serpentinite and in sheared metabasalt near a fault contact between these rock types.

Saudi Arabia

This zone consists of both a calc-silicate skarn system as well as chalcedonic and quartz veining with arsenopyrite and pyrhhotite in coarse clastic sediments.

Eagle Plains Reports Results on Sprogge Gold Project, Yukon Territory

The HHC forms the hanging wall of the Main Central Thrust (MCT) and incorporates pelitic, psammitic and quartzite sequences together with thin amphibolite and calc-silicate bands along with granitoids of various ages.

Constraing pre-Himalayan fabric by SHRIMP U-Pb zircon dating

1962) state that apophyllite can occur in fissures in metamorphic rocks bordering granite, and in limestone or calc-silicate rock associated with calcite, sometimes as an alteration product of wollastonite.

The Baumann prospect Chickencoop Canyon, Tulare County California

Gold anomalies up to 1,400 ppb are also found in scheelite-bearing calc-silicate zones which can be followed intermittently for 3.