Cavansite

Cavansite is in the Silicate family of minerals, and was named by combining its elemental abbreviations. Ca for Calcium, Va for Vanadium, and Si for Silica. it gets its vibrant blue color from the presence of Vanadium. it was originally found in Malheur County, Oregon when they were doing excavation work to build a dam on the Owyhee River. Most Cavansite these days comes from the Deccan Traps in India. 

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Mimetite

Mimetite is a lead chloride arsenate mineral with the composition Pb 5(AsO 4) 3Cl. It is a secondary mineral, formed by oxidation of primary lead minerals in arsenic-bearing lead deposits.
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Fluorite

Fluorite crystals formed 150–200 million years ago when hot water containing fluorine and other minerals was forced up through cracks in the earth where it interacted with the calcium-rich limestone bedrock.
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Pyrite

Pyrite also commonly referred to as Fools Gold is in the Sulfide family of minerals, and is composed of mostly Iron and Sulphur. Sometimes small amounts of Nickel and Cobalt will be found along side the Iron and Sulphur. Pyrite is a polymorph of its cousin mineral Marcasite. Named in antiquity from the Greek "pyr" for "fire", because sparks flew from it when struck with another mineral or metal.

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Malachite

Malachite is a secondary copper mineral that forms in the oxidized zones of copper bearing ore bodies when primary copper sulfides are exposed to oxygen and begin oxidizing. This mineral has had many uses through time, such as being crushed and used as make up by the epgytians.
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Black Tourmaline

A member of the Tourmaline Family which come in many varieties of colors. It is a Basic sodium Iron Aluminum Boro-Silicate. It is found in Metamorphic and Igneous rocks. Most commonly found in Granite.
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Barite, Cerussite, Galena

These specimens come out of Milbladen, Morocco. The Galena and Cerussite are both important lead ores. Cerussite is a lead Carbonate while Galena is a Lead Sulfide. Galena is also an important source for Silver, and has been the most important source of lead in history. Barite is the Primary ore they retrieve the element Barium from. 

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Purple Aragonite

Aragonite is a carbonate mineral and one of the three most common naturally occurring crystal forms of calcium carbonate ( CaCO 3), the others being calcite and vaterite. It is formed by biological and physical processes, including precipitation from marine and freshwater environments.