MineRocks Talc Sandstone Limestone Quartz Marble

"Building Blocks"

Discovering

ROCKS &

MINERALS

S

Definition

andstone is a clastic sedimentary rock that forms 25% of all sedimentary rocks. Sandstones have three basic components (1) The detrital grains or a sand - size minerals like quartz and feldspar, (2) The detrital matrix that consists of clay or mud and, (3) A cement in crystalline form. "Cut slab of sandstone" Sandstone is a product of physical and chemical weathering of bedrock. They can be found in any color but the most common once are colors yellow, red , pink, white and black. Sandstone's components varies between (1) Silica) with 93 - 94% , (2) Aluminum oxide with 1.4 to 1.5% , (3) Iron with 1.5 to 1.6% , (4) Lime with 0.8 to 0.9% , (5) Soda & Potash with 1.0 to 1.2% , (6) Loss on 1: "Chemical Properties of Sandstone" Ignition with 1.0 to 1.2% and (7) Magnesia with 0.2 to 0.25%. (Refer to image 1 for the table).

L

imestones is a sedimentary rock composed of 50% calcium carbonate usually in the form of calcite or aragonite and it contains rich fossil content. Limestone may be in colors yellow, white or gray, it comes in a wide variety like the Bitumunous, Carboniferoud, Chal and, Oolie. Limestones usually forms in marine waters such as "Limestone deposit in Dinaric Alps" parts of the Caribbean Sea, Indian Ocean, Persian Gulf, Gulf of Mexico around the Pacific Ocean islands and within the Indonesian archipelago. Most of them uartz is a hard mineral have a granular texture. composed of silica (Silicon dioxide) it is considered to be the the second most abundant mineral in Earth's continental crust. Quartz exists in two forms , the αquartz that has a hexagonal structure and the β-quartz that has a trigonal structure. It is found in all 3 forms of rock namely the sedimentary, igneous, and the metamorphic rocks.Quartz's varies according to it's color Pure Quartz "2: Pure Quartz" (Clear Quartz) is a colorless and

Q

transparent or translucent (refer to 2 for image), Amethyst Quartz ranges from a bright vivid violet to dark or dull lavender shade, Blue Quartz contains crocidolite that makes it's color blue and opaque to translucent, Rose Quartz exhibits a pale pink to rose red color , Smoky quartz is a gray and translucent version of quartz and Prasiolite also known as as vermarine is another variety of quartz that is green in color. "Smoky Quartz, A variety of Quartz" Quartz characteristics are as follow; Streak: White , Hardness rating: 7, Luster: Vitreous. Transparent, colorless Quartz crystals from a few distinct localities may be adamantine , Fracture: Conchoidal , Dissolves in hydrofluoric acid , Cleavage: Indiscernible, Chemical Formula SiO2 .

M

arble is a metamorphic rock that is composed and formed by carbonate minerals like calcite and dolomite that has been recrystallized under the heat and pressure of metamorphism, this process usually occurs at convergent plate boundaries. It has a Mohs hardness scale of 3 and may be seen in colors white, blue-gray, blue/black, pink, salmon, rose, reddish and green.

"Marble Quarry"

T

alc or talcum is a clay mineral composed of Basic magnesium silicate. It

dominantly forms from the metamorphism of magnesian minerals like serpentine olivine and pyroxene it can also be formed through the reaction of dolomite with silica and magnesium chlorite together with quartz. "Mineral Talc" Talcs characteristics and properties are as follows; Chemical Formula: Mg 3 Si 4 O 10 (OH)2 , Colors: White, beige, gray, yellow, brown, pink, purple, blue, green, Rarely colorless , Streak: White , Hardness: 1 , Crystal System: Monoclinic , Transparency: Transparent to opaque , Luster: Greasy, waxy, pearly , Cleavage: 1,1 , Fracture: Uneven , Rock type: Metamorphic , Tenacity: Sectile

"Talc in powdered form"

"Green colored Talc"

Examples and Uses Sandstone - used in decorative artworks, construction and tools. Sandstone has been used in building temples, churches homes, tv screens , paint , fiberglass, computer chips, and in making glass "Glass Bottle"

Marbles - are widely use in the field of architecture, sculpture and chemistry. It is used for buildings, construction, Whiting for papers and paint, Soil Treatment , Neutralizing Acids, Supplements and Cemetery Marker "White Paper"

Quartz - is connected in the formation of igneous rocks, it is used for hardstone carvings like the Lothair Crystal. Pure Quartz has many electronic uses such as oscillators in radio, watches, pressure gauges. Quartz is also used in the process of sandblasting, glass grinding and cutting of stones. "Pressure gauge"

"Toothpaste"

Talc - is connected in the formation of metamorphic rocks. It is has a high resistance to heat and electricity and is used in electronics, as an insulator. It can also be crushed into a white powder that absorbs oil, odor, serves as lubricant, if added with cornstarch it produces baby powder, is used in paints, rubber, insecticides, jewelry boxes and tiling.

Limestones - are used in glass making, is added to toothpaste, paper, plastics, paint and tiles. Is often located in medicines and cosmetics, it utilized in sculptures Most limestones are made into crushed stone and are used in road base, railroad ballast, foundation stone, drain fields, concrete aggregate and other construction uses. It is a major industrial raw material that is in constant demand.

"Talc in powdered form"

Objectives To know the connection of minerals and rocks in our environment To identify the different process that turns minerals into rocks To know the use and examples of the different rocks and minerals To Identify the different types of rocks, minerals and their variants

Conclusion Minerals are the building blocks of Rocks. There are many classifications of minerals and rocks depending on their colors, sizes and uses. Shockingly it is unexpected that most things around us have minerals and rocks. Minerals and Rocks are in used long before the modern age, without them the present time wouldn't exist

Sources https://www.minerals.net/Minerals/T.aspx https://en.wikipedia.org/wiki/Talc https://geology.com/minerals/talc.shtml https://en.wikipedia.org/wiki/Marble https://www.britannica.com/science/marbl e-rock https://en.wikipedia.org/wiki/Quartz https://www.britannica.com/science/quartz https://en.wikipedia.org/wiki/Sandstone https://geologyscience.com/rocks/sandsto ne/ https://en.wikipedia.org/wiki/Limestone https://www.britannica.com/science/limest one https://geology.com/rocks/limestone.shtml

MineRocks

B12 Leynes Aaron, 11 - St. John XXIII