how hard is the rock talc

What numbers is Talc on Mohs Hardness test - The Q&A wiki- how hard is the rock talc ,What is the Mohs hardness test? The Mohs hardness scale is basically a scale used for determining how hard a mineral. More. Why is mohs hardness scale not the best test?Is talc, the mineral, hard or soft? | ChaChaIs talc, the mineral, hard or soft? ChaCha Answer: Talc is a very soft mineral, with a Mohs Hardness Scale rating of only 1. A hard m...





Mohs Scale - Answers

Mohs Hardness Scale is a comparative way of measuring the hardness of a rock or mineral - that is, its resistance to scratching. It is usually used with minerals ...

Get Price

Smart Blog: Mohs Scale of Mineral Hardness

Talc is the softest known mineral and is composed of hydrated ... is a tectosilicate mineral which forms igneous rock. ... The Benefits of Hard Work.

Get Price

All of My Faults Are Stress-Related: talc and the "weak fault

A couple of them are really hard to make out - talc and serpentine are both Mg ... I don't know how powdery the rock itself is - it might be hard to ...

Get Price

LESSON 4 - Teachers Network

talc: soft pencil lead: 2: gypsum: fingernail; blackboard ... We think if we use our fingernail, penny, and an iron nail, then we can determine how hard a rock is. ...

Get Price

About the Talc Mineral | eHow - eHow | How to Videos

About the Talc Mineral. Anyone who has ever changed a diaper has likely become acquainted with talcum powder. In addition to its more delicate uses as an ingredient ...

Get Price

WGMS Rock Puppies » Rock Identification - Wichita Gem

Hardness is how hard a rock is compared to other rocks or items. While talc is the softest, diamond is the hardest.

Get Price

Talc - Sandatlas

Talc is a common mineral in some metamorphic rocks. It is a sheet silicate which means that it is structurally similar to micas and clay minerals.

Get Price

Identification of Minerals - Rocks For Kids

It is not easy to tell the difference between rocks & minerals because there are so many kinds of them. It takes years of study to be able to accurately ...

Get Price

Identifying Rocks and Minerals/Hardness - Wikibooks, open

For example, corundum (9) is twice as hard ... To test the hardness of a specimen take it and try to scratch it with the first rock your in your hardness kit, Talc, ...

Get Price

A Soft Metamorphic Rock Composed of the Mineral Talc? - Ask

Steatite is a soft metamorphic rock composed of the mineral talc. It is more commonly referred to as soapstone or soaprock. Steatite is usually coloured white

Get Price

Mohs Scale of Hardness - Mineralogical Society of America

Talc (1), the softest mineral on the Mohs scale has a hardness greater than gypsum (2) ... transportation and lithification ( change of sediments to rock).

Get Price

Talc Minerals,Talc Powder,Hydrated Magnesium Silicate,Talc

Read about talc minerals, talc powder, hydrated magnesium silicate, talc powder uses, talc exporters, talc mineral information, talc suppliers, talc supplier india ...

Get Price

Snow White Mine | Cal Poly Pomona - Geological Sciences | Cal

Snow White Talc Mine . Talc production was first reported from the eastern Mojave in 1910, although the presence of large talc bodies had been noted as early as the ...

Get Price

Minerals - Simple English Wikipedia, the free encyclopedia

A rock is a mixture ... it is difficult to see why an organic substance should not be called ... a ten-point scale running from the softest, talc to the hardest ...

Get Price

Mohs Hardness Scale of Minerals - About Geology

Talc; Gypsum; Calcite; Fluorite; Apatite; Feldspar; Quartz; Topaz; Corundum; Diamond; You use the Mohs hardness scale by testing your unknown mineral against one of ...

Get Price

Hardness of Minerals - ThinkQuest

The easiest way to identify a mineral is by how hard it is. The first hardness scale was invented by Friedrich Mohs, a German man who invented the scale ...

Get Price

What Is the Hardest Mineral - Ask

The hardest mineral is diamond. There are several other hard minerals, these include: talc which is a metamorphic mineral, Corundum which is also known as Ruby

Get Price

How HARD is ROCK HARD ??? - Yahoo! Answers

It depends on the rock. Talcum powder comes from a rock so soft you can scratch it with your finger. Diamonds are so hard that nothing else will scratch them.

Get Price

HardAssetsInvestor - Talc: An Innocent White Powder

Whence Talc? Talc is mined from talc-bearing metamorphic rock. Within this rock, bodies of talc can often range in thickness from tens of meters to over 100 meters.

Get Price

Mohs Hardness Scale - Answers

Basalt is a rock containing various minerals. ... How hard are instrusive rocks on the mohs hardness scale? ... Talc (softest) 2. Gypsum 3. Calcite 4.

Get Price

SMI: What is Talc?

The term talc covers a wide range of natural rocks and minerals, most of which are magnesium silicates. The pure talc mineral is a hydrous magnesium silicate, Mg 3 Si ...

Get Price

Mohs scale of mineral hardness - Wikipedia, the free encyclopedia

The Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material.

Get Price