what feldspar luster is?

what feldspar luster is?
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Alum is commercially produced from (A) Gypsum (B) Feldspar (C) Galena (D) Bauxite

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Which one of the following is an example of chemical weathering? w) the splitting of a boulder x) the grinding of pebbles into sand y) the cleavage of a feldspar crystal z) the rusting of hornblende

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Carbonic acid is extremely active in the chemical weathering of: w) feldspar x) quartz y) carbon z) quartzite

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Last Answer : ANSWER: W -- FELDSPAR

The most common mineral found in igneous rock is: w) feldspar x) olivine y) muscovite z) fluorite

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Last Answer : ANSWER: W -- FELDSPAR

An agate is a form of what mineral? w) magnetite x) feldspar y) quartz z) copper

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Last Answer : ANSWER: Y -- QUARTZ

What is the name of the white clay which has been used for thousands of years in the fabrication of ceramic bodies? Is it: w) Talc x) Kaolin y) Feldspar z) Quartz

Description : What is the name of the white clay which has been used for thousands of years in the fabrication of ceramic bodies? Is it: w) Talc x) Kaolin y) Feldspar z) Quartz

Last Answer : ANSWER: X -- KAOLIN

Name the clay mineral produced by the alteration of potash feldspar which is also used in ceramics.

Description : Name the clay mineral produced by the alteration of potash feldspar which is also used in ceramics.

Last Answer : ANSWER: KAOLINITE 

Of the following types of material, which is the one that is heterogeneous? Is it: w) quartz x) feldspar y) granite z) mica

Description : Of the following types of material, which is the one that is heterogeneous? Is it: w) quartz x) feldspar y) granite z) mica

Last Answer : ANSWER: Y -- GRANITE

Which of the following is a metallic ore ? (1) Mica (2) Quartz (3) Feldspar (4) Galena

Description : Which of the following is a metallic ore ? (1) Mica (2) Quartz (3) Feldspar (4) Galena

Last Answer : Galena