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This naturally magnetized mineral creates it's own magnetic field and can pick up small metal objects. Iron particles cover its surface. As an iron oxide, lodestone has a characteristic black color, and may feature rusty patches of yellow or orange An excellent introductory mineral, and useful in...
One of the most abundant minerals on Earth. The tightly packed framework of silica tetrahedral that makes up this mineral gives it a high hardness of 7, a lack of cleavage planes, and a distinct euhedral crystal habit A must-have mineral for any specimen collection. Milky Quartz is useful during...
Quartzite is formed from sandstone that has been tightly compressed to the point where the clasts have recrystallized to form a new rock. This formation mechanism, coupled the inherent strength of quartz, makes quartzite a very durable rock. Useful in the classroom for lessons on metamorphic rocks....
Formed from limestone, this high pressure, low heat alteration leads to a large crystalline rock. Heavily mined for architecture, marble is also used for buildings and furniture While denser than limestone, marble is still effervesce in acid, making this metamorphic rock useful in identification...
Granite forms slowly in shallow or evolved magma chambers, and is also commonly found as magmatic intrusions in the crust. The large crystals are indicative of a slow cooling rate, and make mineral identification simple A must-have sample when discussing rock types, the rock cycle, and the...
Peridotite is an iron-rich ultramafic rock, with a chemistry that suggests genesis from a point deep within the crust, possibly as deep as the mantle. The large crystals indicate slow cooling within a magma chamber Ideal for identification & classification exercises. This fascinating sample is...
Pack of 12 Dolostone samples approximately 1" (3cm) in size Raw carbonate rock deposited and lithified out of solution Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements Often used as an ingredient in cement...
Pyrite forms as hot water flows through fractures in subsurface rock. This deposition method allows pyrite to replace other minerals or fossils through pyritization. Also known as Fool's Gold, this brassy, metallic mineral is often mistaken for gold Excellent for exercises in identification and...
Includes twelve streak plates. Great for group activities Used to determine a mineral's color in powder form, or to identify the mineral content of a rock. Great for geology and earth science classrooms Streak plates can be cleaned and reused again and again Each plate is made of unglazed porcelain...
Pack of 12 Chlorite samples approximately 1" (3cm) in size Platy metamorphic mineral with a soapy feel Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements Forms when hot water alters the chemistry of an...
Complete kit includes nine mineral samples and testing tools A fun way to explore the variety of techniques that geologists use to identify rocks and minerals Test mineral hardness, streak color, magnetic properties, appearance, and effervescence to identify different minerals and mineral content...
Marble is a metamorphic rock formed from limestone. The high-pressure, low-heat alteration leads to a massive crystalline rock that can form a variety of shapes. Marble is mined heavily for use in buildings and furniture, and has traditionally been used in architecture as well. Though much denser...
A metamorphic rock that has undergone moderate levels of alteration, schist is good for demonstrating the effect of metamorphism on various minerals Ideal for identification & classification exercises. Schist is great rock for demonstrating foliation & metamorphic rock properties. This set of six...
A fun introduction to the world of geology through rocks and minerals. Set includes twelve different rocks and minerals - Crystal Quartz, Basalt, Breccia, Biotite Gneiss, Fluorite, Granite, Conglomerate, Marble, Apatite, Scoria, Sandstone, and Slate. While each specimen will vary in shape and size,...
Oolitic limestone is a carbonate rock formed from the cementation of thousands of ooids. Ooids are tiny nodules formed from the accumulation of carbonate material around a nucleus. When cemented together and lithified, these ooids can form rock. Oolitic limestone forms in reef or lagoon...
A fun introduction to the world of geology through sedimentary rocks! Sedimentary rocks are formed by the deposition and compression of particles of other rocks and minerals. Each Tech Cut specimen is selected and hand processed, ensuring each sample exhibits defining features. Set includes twelve...