well,the world may never know
a catalog of rocks and minerals
Minerals(inorganic solids with a crystalline structure) change in size or shape under the intense heat and pressure to form metamorphic rocks.
There are three types of rocks, igneous, sedimentary and metamorphic rocks. They are basically composed of minerals, water and dissolved gases.
Sculptures were made of clay because the stone that the Mesopotamians had was very rare.
It is the feel of a material, like smooth, rough, soft, hard, etc. . :)
Hard matrix is supposed to be used for digging hard rocks and soft matrix for soft rocks. It's quite confusing to me
Soft or hard water has to do with the amount of dissolved minerals in water and what those minerals are. "Harder" water has more dissolved minerals (like calcium.)
well It Is hard because all rocks are hard
A mineral is the basic building block of which all rocks are composed. Consider them to be the ingredients of a cake: the minerals being the flour, eggs and sugar etc. and the rock being an aggregate (collection/formation) of those minerals.
Please describe what you mean by soft and rephrase the question.
Mineral content. more minerals means hard
The soft silicate flakes found in many rocks are likely to be mica minerals, such as muscovite or biotite. These minerals have a layered structure that allows them to break into thin flakes or sheets easily. Mica minerals are common in igneous, metamorphic, and sedimentary rocks.
River water is generally considered soft water because it contains low levels of minerals like calcium and magnesium. Hard water typically comes from sources like groundwater or wells, where it has passed through mineral-rich rocks.
rocks are hard and can get bacteria in our mouth
One of the softest rocks is Talc. Talc is a mineral not a rock!Minerals are pure, rocks can be formed from one or more minerals. A piece of talc is a rock formed of a single mineral.Clays, are rocks and can be very soft.
There are types of igneous rocks that are hard (eg granite) and others that are soft (eg volcanic ash). There are types of metamorphic rocks that are hard (eg gneiss) and others that are soft (eg marble). Thus "hardness" is not a characteristic that can be used to distinguish between the two.
because a metamorphic rock is made up of different rocks.