Rock Forming Minerals

MARTY'S MINERAL COLLECTION



This collection represents, for the most part, a sample of the most common rock forming minerals. This collection was put together by myself after deciding to obtain a sample (mostly crystaline) of each of the rock forming minerals learned in my minerology class. A few samples listed are not from that list (bixbyite for example), and were added mainly for their highly aesthetic appearance. As you can see, the collection is still yet to be completed. Descriptions and size information for minerals are not finished. Several species of minerals have several samples that go along with them, in addition there are other misc. specimens, such as inclusion minerals, that I have yet to add and will do so in the future. Minerals are grouped in the same way as our professor, Dr. Lowell, had them arranged.

Tectosilicates


Amethyst crystal

Quartz

Chalcedony

Chalcedony

Text

Na/Ca Feldspar

K-spar with Albite twinning

K Feldspar

Text

Leucite

Text

Nepheline

Text

Cancrinite

Mostly Massive Sodalite

Sodalite

Scapolite Crystal

Scapolite

Stilbite crystals

Stilbite

Chabazite crystals

Chabazite

Cavansite crystals

Cavansite


Chain, Ring, Pair Silicates


Tremolite crystals

Tremolite

Text

Hornblende

Text

Glaucophane

Text

Enstatite

Text

Augite

Diopside Crystal

Diopside

Actinolite crystal

Actinolite

Spodumene crystal

Spodumene

Rhodonite crystals

Rhodonite

Massive wollastonite

Wollastonite

Tourmaline crystal

Tourmaline

Aquamarine beryl

Beryl

Blocky vesuvianite crystal

Vesuvianite

Epidote crystal

Epidote

Neptunite crystals

Neptunite


Sheet and Unit Silicates


Text

Prehnite

Text

Kaolinite

Fiberous chrysotile with serpentine

Chrysotile

Talc Crystal

Talc

Text

Chlorite

Diamond muscovite

Muscovite

Biotite crystal

Biotite

Lepidolite Crystal

Lepidolite

Olivine crystal

Olivine

Garnet crystals

Garnet

Datolite Crystals

Datolite

Text

Zircon

Topaz Crystal

Topaz

Andalusite crystal cross section

Andalusite

Text

Sillimanite

Bladed kyanite crystal

Kyanite

Staurolite twin

Staurolite

Crystal of Titanite

Titanite

Globular chrysocolla with malachite

Chrysocolla

Radiating pyrophillite crystals

Pyrophillite


Carbonates, Sulfates, Phosphates, Vanadates, Borates, Tungstates


Calcite crystals

Calcite

Aragonite Starburst

Aragonite

Dolomite crystals

Dolomite

Siderite crystal

Siderite

Rhodochrosite crystals

Rhodochrosite

Botriodal smithsonite

Smithsonite

Text

Witherite

Strontianite cluster

Strontianite

Cerrusite Twin

Cerussite

Radiating malachite

Malachite

Azurite crystals

Azurite

Barite crystals

Barite

Celestite geode

Celestite

Text

Anglesite

Gypsum starburst

Gypsum

Anhydrite crystal

Anhydrite

Colemanite Crystal Cluster

Colemanite

Kernite Crystal

Kernite

Apatite crystal

Apatite

Radiating wavellite crystals

Wavellite

Vanadinite crystals

Vanadinite

Text

Carnotite

Wolframite Crystal

Wolframite

Text

Scheelite

Radiating adamite crystals

Adamite


Oxides, Chlorides, Fluorides


Text

Cuprite

Corundum crystal

Corundum

Hematite Rose

Hematite

Text

Ilmenite

Octohedral magnetite

Magnetite

Text

Chromite

Text

Cassiterite

Rutilated Hematite

Rutile

Text

Pyrolusite

Text

Romanechite

Pyrite pseudomorphed to limonite

Limonite

Goethite crystals

Goethite

Text

Bauxite

Halite hopper crystal

Halite

Text

Sylvite

Octohedral fluorite

Fluorite

Bixbyite crystal

Bixbyite

Spinel Crystal

Spinel


Native Elements, Sulfides, Sulfosalts


Gold Crystal

Gold

Silver crystal

Silver

Copper nodes

Copper

Sulfur crystals

Sulfur

Diamond Crystal

Diamond

Text

Graphite

Text

Chalcocite

Text

Bornite

Text

Covellite

Text

Chalcopyrite

Galena crystal

Galena

Spinal twinned sphalerite crystal

Sphalerite

Cubic pyrite crystals

Pyrite

Text

Marcasite

Arsenopyrite twin

Arsenopyrite

Text

Pyrrhotite

Text

Niccolite

Skutterudite crystals

Skutterudite

Twinned Cinnabar crystal

Cinnabar

Radiating stibnite crystals

Stibnite

Text

Realgar

Orpiment crystals

Orpiment

Hexagonal Molybdenite crystal

Molybdenite

Enargite crystals

Enargite

Tetrahedrite with Quartz

Tetrahedrite

Text

Proustite

Wulfenite crystals

Wulfenite



Inclusions



This section is devoted to inclusion type mineral specimens. Inclusions are basically one mineral inside of another. While virtually every mineral has inclusions, visible and large inclusions are are my favorite type of mineral inclusions to collect because of their uniqueness and rarity. Collecting inclusions no doubt will continue after I finish my initial goal of obtaining all the minerals learned in class.

Garnet included within mica plate

Garnet in Muscovite

Garnet included within mica plate

Garnet in Muscovite

Copper veins included within Gypsum

Copper in Gypsum

Pyrite flecks within Fluorite octohedron

Pyrite in Fluorite

Pyrite flecks within Fluorite octohedron

Pyrite in Fluorite

Enhydro Quartz

Enhydro Quartz

Marcasite included within calcite

Marcasite in Calcite

Lepidocrocite included within quartz

Lepidocrocite in Quartz

Pyrite cube included within quartz twin

Pyrite in Quartz

Anatase included in Quartz

Anatase in Quartz

Fluorite octohedrons in Quartz

Fluorite in Quartz

Garnet in Quartz

Garnet in Quartz

Muscovite in Quartz

Muscovite in Quartz

Garnet included in Beryl crystal

Garnet in Beryl

Spidery hollandite within quartz crystal

Hollandite in Quartz

Classic rutilated quartz

Rutile in Quartz

Vanadinite within Calcite

Vanadinite in Calcite

Scenic looking inclusions in quartz

"Scenic" Quartz

Fluorite in polished Quartz

Fluorite in Quartz

Stibnite included in Quartz crystal

Stibnite in Quartz

Bronzy bladed cacoxenite in quartz

Cacoxenite in Quartz

Actinolite crystals in Orthoclase

Actinolite in Orthoclase

??? and ??? in fluorite

Unknowns in Fluorite

Pyrite in Calcite

Pyrite in Calcite

Realgar in Calcite

Realgar in Calcite

Tourmaline in Quartz

Tourmaline in Quartz

Rutile in Topaz

Rutile in Topaz

This should not be

Polymorphs in Quartz

This also should not be

Polymorphs in Quartz