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  1. Agate Geodes - Quartz

    Agate geodes are geological secondary structures which occur in certain sedimentary and volcanic rocks. They are themselves of sedimentary origin and naturally made by chemical precipitation. Geodes are hollow, vaguely spheroid to oblate masses of mineral matter. It may include crystals. They are excellent for grounding, working on the emotional, physical and intellectual levels and aid in centering and stabilizing physical energy.

    Record Type: Object

    Geode Agates
  2. Agatized Rock - Quartz

    The term "agatized" refers to the variety of translucent chalcedony called "agate," which has very small crystals (micro- or cryptocrystalline), and is characterized by banding and rich coloration, properties that are common to agates. These 6 rocks were found in Jefferson County Montana.

    Record Type: Object

    Agatized Rocks
  3. Amethyst Crystal - Quartz

    Amethyst is one of the most common--and popular!--gemstone materials. This variety of quartz ranges in color from deep purple to pale lavender depending on the presence of manganese and iron. These amethyst crytals were found at the PC Mine in Jefferson County Montana. Amethyst helps balance metabolism and positively serves the endocrine system, the body finds its inner harmony.

    Record Type: Object

    Amethyst Crystal
  4. Amethysts - Quartz

    Amethysts forms in long, prismatic crystals in geodes or hollow rocks. These geodes form when there are cavities in volcanic rock. As the rock cools, the mineral-saturated water, gases and volcanic material distil and crystallize. When these crystals harden, they form amethyst. Although generally more of a deeper purple, the stone can also have a reddish-purple tinge, or a very pale purple tinge that fades into a lilac. Amethyst is the most popul...

    Record Type: Object

    Amethyst Crystal
  5. Amethyst with Epitaxy - Quartz

    Amethyst employs two Riber molecular beam epitaxy (MBE) tools in support of its materials growth operations. This rock has (small crystals growing parellel) and was found in Jefferson County Montana.

    Record Type: Object

    Amethyst with Epitaxy
  6. Axinite Epidote - Limestone

    Epidote is a common mineral found in low to moderately regionally metamorphosed rocks. Epidote also occurs in contact metamorph limestone, especially near ore deposits. In granitic rocks Epidote is found in small fissures. Axinite is a brown to violet-brown, or reddish-brown bladed group of minerals composed of calcium aluminium boro-silicate, (Ca,Fe,Mn) 3Al 2BO 3Si 4O 12OH. These 4 rocks were found in Jefferson County Montana.

    Record Type: Object

    Epidote
  7. Barite - Quartz

    Barite is well-known for its great range of colors and varied crystal habits. It is easily identifiable by its heavy weight, since most similar minerals are much lighter. It receives its name from the Greek word "barys" which means "heavy. Barite is the main ore of the element barium. It is also important in the manufacture of paper and rubber. Barite is also used in radiology for x-rays of the digestive system. When crushed, it is added to mud t...

    Record Type: Object

    Barite Crystals
  8. Chalcopyrite - Copper

    Chalcopyrite, the most common copper mineral, a copper and iron sulfide, and a very important copper ore. It typically occurs in ore veins deposited at medium and high temperatures. The most obvious properties are its brassy yellow colour, metallic lustre, and high specific gravity. Although similar in appearance to gold, distinguishing these minerals is easy as gold is soft, has a yellow streak and has a much higher specific gravity. Chalcopyrit...

    Record Type: Object

    Chalcopyrite
  9. Clear Quartz with Crystal - Quartz

    Clear quartz is perhaps one of the most popular and easily recognisable crystals around. Also known as clear quartz crystal, this stone is a mineral composed of oxygen and silicone atoms. It forms part of the trigonal crystal system and is classified as having a vitreous luster. As its name suggests, the rock is a transparent one. Other than appearing clear to the eye, this stone is also believed to bring clarity to those who carry it. It is also...

    Record Type: Object

    Clear Quartz with crystal
  10. Copper Ore - Copper

    Copper ore is typically found in the Earth's crust in the form of copper minerals, such as chalcopyrite, bornite, malachite, and chalcocite, among others. This copper ore was found on the Hallie Ferguson Mine on Cataract Creek in Jefferson County Montana. The copper ore was donated by Don Balser of Clancy Montana.

    Record Type: Object

    Copper Ore
  11. Fluorite (Florspar) CaF2 - Fluorite

    Calcium Fluoride (CaF2), is also known as fluorite or fluorospar. It is a naturally occurring mineral that is transparent to translucent with colour varying widely from intense purple, to blue green, to yellow, through to reddish oranges, pinks, whites and browns. luoride (CaF2) is used in aluminium-metallurgy, brake lining, glass manufacturing, enamel and glazing frits production, and the production of welding agents and was found in Jefferson C...

    Record Type: Object

    Fluorite (Florspar)
  12. Garnets - Garnet

    Most garnet forms when a sedimentary rock with high aluminium content, such as shale, is metamorphosed (subjected to heat and pressure). The high heat and pressure breaks the chemical bonds in the rocks and cause minerals to recrystallis. These garnets were donated by Don Balser from Jefferson County Montana. Garnets are used for abrasive blasting granules, abrasive grits and powders, filtration granules, waterjet cutting granules and gemstones s...

    Record Type: Object

    Garnets
  13. Green Tourmaline - Quartz

    Green Tourmaline, also known as Verdelite, is a lithium rich crystalline boron silicate mineral and member of the Tourmaline family. Green Tourmaline moves healing energy throughout the body, bringing a sense of vitality and overall healthiness. It is used to encourage healthy sleep patterns, calm the nervous system and fight Chronic Fatigue Syndrome. This rock was found in Jefferson County Montana.

    Record Type: Object

    Green Tourmaline
  14. Jasper - Quartz

    Jasper is an opaque form of Chalcedony, which is a microcrystalline variety of the mineral Quartz. It often contains an abundance of impurities, and therefore some regard it as a rock instead of a mineral. These two rocks were found in Jefferson County Montana.

    Record Type: Object

    Jasper
  15. Jasper and various Agate - Gypsum

    Left three rocks are Jasper which is an opaque rock of virtually any colour stemming from the mineral content of the original sediments or ash. Patterns arise during the consolidation. Jasper is used for ornamentation or as a gemstone. The three rocks on the right are various agate which is almost always translucent (letting through some light when you shine a light on it) and have banding- thin visible layers. Often these bands form concentric r...

    Record Type: Object

    Jasper & Agate
  16. Lead, Copper, Galena, Pyrite, Silver - Pyrite

    Galena is a lead sulfide mineral. It is the world's most important ore of lead and a significant ore of silver. Pyrite is used to create iron sulfate that is used to make nutritional supplements, ink, lawn conditioner, water treatment and flocculation, moss killer, and many other chemical processes. Lead is widely used for car batteries, pigments, ammunition, cable sheathing, weights for lifting, weight belts for diving, lead crystal glass, radia...

    Record Type: Object

    Lead, Copper, Galena, Pyrite and Silver
  17. Microcline - Granite

    Microcline (KAlSi3O8) is an important igneous rock-forming tectosilicate mineral. It is a potassium-rich alkali feldspar. Microcline typically contains minor amounts of sodium. It is common in granite and pegmatites. This rock was found at homestake Pass in Silver Bow County Montana.

    Record Type: Object

    Microcline
  18. Moss Agate - Quartz

    Moss agate is a variety of chalcedony, a mineral that belongs to the quartz family. It is formed through silica precipitation, in which silica-rich fluids fill voids and cracks in rocks and solidify into a mineral. Moss Agate speeds up recovery from illness. It is anti-inflammatory, cleanses the circulatory and elimination systems, and boosts the immune system. The moss agate was found in Jefferson County Montana.

    Record Type: Object

    Moss Agate
  19. Peacock Ore (Borrite) - Copper

    Bornite, also known as peacock ore, is a sulfide mineral with chemical composition Cu5FeS4 that crystallizes in the orthorhombic system. Bornite has a brown to copper-red color on fresh surfaces that tarnishes to various iridescent shades of blue to purple in places. Its striking iridescence gives it the nickname peacock copper or peacock ore. This rock was found in Jefferson County Montana.

    Record Type: Object

    Peacock Ore (Borrite)
  20. Petrified Leaf in Shale - Slate

    Shale is a soft, brittle, fine-grained, and easily eroded sedimentary rock formed from mineral-rich silt, or mud, that was deposited in an aquatic environment, buried by other sediment, and compacted and cemented into hard rock. When exposed at the surface by erosion, shale weathers into thin layers called plates. This petrified leaf image in shale was found in Jefferson County Montana.

    Record Type: Object

    Petrified Leaf in Shale

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