Rock And Gem Identification Guide

It is a common iron ore and is often used in jewelry and other decorative items.

Rock and gem identification guide.

Follow this handy guide to learn more about your gems rocks minerals our gemstones and minerals traveled across the world to become a part of your collection. An interactive reference guide to rocks minerals and gemstones. Anyone interested in seeking out and identifying rough gemstones should start by buying an illustrated guide or looking up images online of rough gemstones. Printable tumbled stone identification chart.

Our mining rough contains gems and minerals that were mined in countries as far away as brazil peru mexico india and madagascar. Positive identification requires much more than looking at a photo. Soft rock does not scratch steel but will scratch fingernails mohs scale of 3 to 5 5 while very soft rock won t even scratch fingernails mohs scale of 1 to 2. Marble containing hematite is red.

Magnetite is sometimes called lodestone. The chemical formula is fe 3 o 4. Once you have identified the relative abundance of different minerals in your rock you can come see examples of common upstate rocks at the museum or you can refer to an online or other reference. Marble is a crystalline rock composed predominantly of calcite dolomite or serpentine minerals.

Rock identification chart once you ve determined what type of rock you ve got look closely at its color and composition. The mineral and gemstone kingdom is a free informational and educational guide to rocks minerals gemstones and jewelry. If your specimen is a rock you will need to identify the individual minerals that compose it by following the mineral identification guide below. Gemstones in the rough look more like rocks than the polished stones used in jewelry.

It has a hardness of 3 4. Interactive guide to hundreds of rocks and minerals. This site has been providing detailed information and photos of hundreds of mineral and gemstone since 1997 and is one of the leading education resources on minerals and gemstones. The colors of marble vary depending on the impurities within the marble.

It was used by the ancient chinese to make the first magnetic compasses. Hematite is one of the most prevalent and useful forms of iron on our planet. Rock identification guide complete with photos and information about each rock s distinguishing characteristics this rock identification guide has been designed to assist you in identifying the rocks provided in the deeper and deeper and mining matters ii kits. Impurities may cause the marbel to be green red blue yellow etc.