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Ilvaite
Ilvaite

Locality: Rio Marina, Elba Island, Livorno Province, Tuscany, Italy Field of View: 14 mm Formula...

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Amazing Gehlenite
Amazing Gehlenite

Locality: Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germ...

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Fluorite - fluorescent
Fluorite - fluorescent

Fluorite - fluorescent Rogerley Mine Frosterley Country Durham United Kingdom Size: 9.5 x 7.3 ...

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Anticlines and Synclines
Anticlines and Synclines

This photo taken on U.S. 48 near Walnut Bottom, West Virginia, is an example of both anticlines ...

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Haüyne, Sanidine
Haüyne, Sanidine

Locality: In den Dellen quarries, Niedermendig, Mendig, Laach lake volcanic complex, Eifel, Rhin...

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What is Bowen's Reaction Series?
What is Bowen's Reaction Series?

Back in the early 1900's, N. L. Bowen and others at the Geophysical Laboratories in Washington ...

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Rhodochrosite, Hubnerite, Tetrahedrite, and Needle Quartz
Rhodochrosite, Hubnerite, Tetrahedrite, and Needle Quartz

Rhodochrosite, Hubnerite, Tetrahedrite, and Needle Quartz Hedgehog Pocket, Main Stope Drift, S...

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Download The General Dictionary of Geology
Download The General Dictionary of Geology

Edited by : Alva Kurniawan Department of Environmental Geography, Gadjah Mada University, Yo...

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Why does Earth have deserts?
Why does Earth have deserts?

Take a look at a physical map of the world. Thirty degrees on either side of the equator, you will ...

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 Huge earth crack opened up in Sonora, Mexico
Huge earth crack opened up in Sonora, Mexico

A one-kilometer long earth crack opened up on August 15, 2014, in Sonora, Mexico. The crack sev...

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Why Geologists Love Beer?
Why Geologists Love Beer?

Fact: Geologists love beer. There is abundant proof of this here at the American Geophysical Un...

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How does Bowen's Reaction Series affect chemical weathering?
How does Bowen's Reaction Series affect chemical weathering?

In general, minerals are most stable at the temperature and pressure at which they form. In the...

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10 Pictures that will make you want to become a Geologist
10 Pictures that will make you want to become a Geologist

Geology is a magnificent and unique science. What makes it so unique, you may rightly ask; well, a...

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How Plate Tectonics Works?
How Plate Tectonics Works?

1. There are two basic types of LITHOSPHERE: continental and oceanic. CONTINENTAL lithosphere has a...

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How to study and  identify the Minerals samples?
How to study and identify the Minerals samples?

            In simple terms, our planet is just a big ball of very hot stuff which, at the surface...

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How can I tell the difference between quartz and white feldspar in identifying rocks?
How can I tell the difference between quartz and white feldspar in identifying rocks?

Feldspar grows (when allowed to) into rectangular crystals, and then usually breaks the same wa...

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Iridescent Pyrite
Iridescent Pyrite

  Iridescent Pyrite Location: Shangbao Mine, Leiyang Co., Hengyang Pref., Hun...

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Gorgeous Agate, Morocco.
Gorgeous Agate, Morocco.

Kerrouchene Khenifra Province Morocco Size: 8x6.4x4.6 cm Weight: 270 g Description: A...

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 Indicolite Tourmaline with a large pink Lepidolite
Indicolite Tourmaline with a large pink Lepidolite

Gorgeous specimen of blue Indicolite Tourmaline with a large pink Lepidolite crystal to its right...

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What is the difference between phaneritic and Aphanitic Rocks ?
What is the difference between phaneritic and Aphanitic Rocks ?

COARSE GRAINED TEXTURE (PHANERITIC) , mineral grains easily visible (grains several mm in size or...

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 Amazing Blue Sapphire
Amazing Blue Sapphire

Today's Luxury eye Candy is just awesome, it's this Blue Sapphire weighing 72.9 cts fro...

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Epidote, quartz
Epidote, quartz

Imilchil Er Rachidia Province Morocco Size: 7.8x5x3.8 cm Weight: 131 g Description: ...

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How can a volcano erupt mafic lava one time, and then felsic lava another time?
How can a volcano erupt mafic lava one time, and then felsic lava another time?

There are several ways, but one of the common ones happens when the magma in a magma chamber has...

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Incredible spray of Azurite crystals with ps to Malachite
Incredible spray of Azurite crystals with ps to Malachite

Incredible specimen featuring a dramatic spray of Azurite crystals with ps to Malachite! Fo...

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What causes the plates tectonic to move?
What causes the plates tectonic to move?

Let's play with some numbers. Assume that average continental crust weighs in at about 10...

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How does Bowen's Reaction Series relate to the classification of igneous rock?
How does Bowen's Reaction Series relate to the classification of igneous rock?

 Bowen's Reaction Series describes the temperatures at which different common silicate mine...

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What are the most important types of rock in the crust?
What are the most important types of rock in the crust?

     Basalt and granite actually have quite a bit in common. Both are igneous rocks, which means...

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Topaz, Zacatecas, Mexico
Topaz, Zacatecas, Mexico

Topaz Locality: Mina Veronica, El Copetillo, Mun. de Villa García, Zacatecas, Mexico FOV=2 cm P...

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