This is Muscovite Mica. It's found in Nellore, India and is used as a cheap alternative to glass in windows. As you can see, it peels very thin and easily with slim layers. It has a very ancient color like old light brown rock.
http://skywalker.cochise.edu/wellerr/mineral/mica/peel.htm
http://skywalker.cochise.edu/wellerr/mineral/mica/peel.htm
This is Biotite Mica. It is found in New England, Virginia, and North Carolina and it's used to constrain ages of rocks and assessing temperature histories of metamorphic rocks.
http://www.mineralminers.com/images/biotite/mins/biom108.jpg
http://www.mineralminers.com/images/biotite/mins/biom108.jpg
This is Sulfur. It's found as a pure element and as sulfide and sulfate.
http://www.clas.wayne.edu/multimedia/usercontent/Image/Geology/gel_1010/SulfurXtls2.gif
http://www.clas.wayne.edu/multimedia/usercontent/Image/Geology/gel_1010/SulfurXtls2.gif
This is Pyrite. It is found in sedimentary rocks, metamorphic rocks, and coal beds. It's used for Ignition and as the cathode material in Energizer brand non-rechargeable batteries.
http://skywalker.cochise.edu/wellerr/mineral/pyrite/6pyrite-peru23.jpg
http://skywalker.cochise.edu/wellerr/mineral/pyrite/6pyrite-peru23.jpg
This is Magnetite. It's found mainly in New Zealand, California, Norway, Italy, and West Australia. It's used for coating industrial watertube steam boilers.
http://upload.wikimedia.org/wikipedia/commons/d/d2/Chondrodite-Magnetite-37952.jpg
http://upload.wikimedia.org/wikipedia/commons/d/d2/Chondrodite-Magnetite-37952.jpg
This is Hematite. It's found in Yellowstone National Park and is used for making jewelry and iron.
http://25.media.tumblr.com/ec8ff95ba759edecfea86e5f647ab658/tumblr_mr4m9fUIMP1r1ykbgo1_500.jpg
http://25.media.tumblr.com/ec8ff95ba759edecfea86e5f647ab658/tumblr_mr4m9fUIMP1r1ykbgo1_500.jpg
This is Galena. It's gray with a metalic luster and is very dense; much heavier than other minerals its size. It breaks into shiny cubes.
http://digitalmuseum.zju.edu.cn/UserFiles/Image/北京大学地质数字博物馆/mineral/mineral_picture/galena.jpg
http://digitalmuseum.zju.edu.cn/UserFiles/Image/北京大学地质数字博物馆/mineral/mineral_picture/galena.jpg
This is Olivine. Olivine is a transparent mineral with a yellow green color and it's often in small clusters of basalt and they are the size of peas. If the material is solid and clear enough it can be made into a gemstone.
http://www.windows2universe.org/earth/geology/images/olivine.gif
http://www.windows2universe.org/earth/geology/images/olivine.gif
This is Azurite. It is a very interesting blue mineral associated with copper ore and a little bit of green malachite.
http://www.shimmerlings.com/gemstones/images/azurite_slice.jpg
http://www.shimmerlings.com/gemstones/images/azurite_slice.jpg
This is Malachite.
http://upload.wikimedia.org/wikipedia/commons/5/55/Malachite,_Zaire.jpg
http://upload.wikimedia.org/wikipedia/commons/5/55/Malachite,_Zaire.jpg
This is Talc. It can easily be scratched with your fingernail because it's the softest mineral. It has a very pearly luster but often described as having a soapy, greasy feel. Malachite is commonly white but can also be a pale green or pink color.
http://geology.com/minerals/photos/talc-foliated-393.jpg
http://geology.com/minerals/photos/talc-foliated-393.jpg
This is Gypsum. It is a light colored mineral and is often colorless but can also be transparent, white, or a pale pink or brown. It has excellent cleavage but the fragments are much thicker than mica and not elastic.
http://geology.com/minerals/photos/gypsum-selenite-162-b.jpg
http://geology.com/minerals/photos/gypsum-selenite-162-b.jpg
This is Milky Quartz. It is white because of the carbon dioxide trapped with the quartz structure. Milky Quartz is usually massive but well formed crystals are also common. It has a hardness of 7 on the Mohs scale and can easily scratch glass.
http://www.galleries.com/minerals/silicate/milky_qu/milky_qu.jpg
http://www.galleries.com/minerals/silicate/milky_qu/milky_qu.jpg
This is Rose Quartz. It is a variety of massive quartz and has a translucent pink color.
http://1.bp.blogspot.com/-FOX0uytaafQ/T9d6pPdAiCI/AAAAAAAABPE/0BFUrlrDlPs/s640/rose+quartz.jpg
http://1.bp.blogspot.com/-FOX0uytaafQ/T9d6pPdAiCI/AAAAAAAABPE/0BFUrlrDlPs/s640/rose+quartz.jpg
This is Amethyst.
http://library.thinkquest.org/05aug/00461/images/amethyst1.jpg
http://library.thinkquest.org/05aug/00461/images/amethyst1.jpg
This is Agate.
http://www.agateswithinclusions.com/images/mexico/LagunaAgate1.jpg
http://www.agateswithinclusions.com/images/mexico/LagunaAgate1.jpg
This is Feldspar.
http://www.rocksforkids.com/images/feldspar%200908%20feldspar%20granite%202.jpg
http://www.rocksforkids.com/images/feldspar%200908%20feldspar%20granite%202.jpg
This is Calcite.
http://www.dakotamatrix.com/images/products/calcite35902a.jpg
http://www.dakotamatrix.com/images/products/calcite35902a.jpg
This is Fluorite.
http://www.ajsgem.com/sites/default/files/fluorite-crystals.jpg
http://www.ajsgem.com/sites/default/files/fluorite-crystals.jpg
This is Graphite.
http://blog.cambridgehouse.com/wp-content/uploads/2012/04/graphite.jpg
http://blog.cambridgehouse.com/wp-content/uploads/2012/04/graphite.jpg