September 2014

Amazing Gehlenite

Locality: Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany FOV 3 mm. Collection…

Fluorite - fluorescent

Fluorite - fluorescent Rogerley Mine Frosterley Country Durham United Kingdom Size: 9.5 x 7.3 x 4.5 cm Photo Copyright…

Anticlines and Synclines

This photo taken on U.S. 48 near Walnut Bottom, West Virginia, is an example of both anticlines and synclines in the sam…

Blue Haüyne With Sanidine Crystals

What is Bowen's Reaction Series?

What is Bowen's Reaction Series? Bowen's reaction series is able to explain why certain types of minerals tend t…

Rhodochrosite, Hubnerite, Tetrahedrite, and Needle Quartz

Rhodochrosite, Hubnerite, Tetrahedrite, and Needle Quartz Hedgehog Pocket, Main Stope Drift, Sweet Home Mine, Alma, Co…

Download The General Dictionary of Geology

Edited by : Alva Kurniawan Department of Environmental Geography, Gadjah Mada University, Yogyakarta, Indonesia and…

Why Does Earth Have Deserts?

Why Does Earth Have Deserts. Hadley Cell scheme (Credit: ClimateTheory) Take a look at a physical map of the worl…

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 severed Highway 26 between …

Why Geologists Love Beer?

Fact: Geologists love beer. There is abundant proof of this here at the American Geophysical Union meeting, the largest…

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 temperatur…

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 good geologist has to kno…

How Plate Tectonics Works?

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

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 where it is exposed to space,…

What Is the Difference Between Quartz and White Feldspar in Rocks?

What Is the Difference Between Quartz and White Feldspar in Rocks? Feldspar Red Circles, Quartz yellow circles. So, …

Iridescent Pyrite

Iridescent Pyrite Location: Shangbao Mine, Leiyang Co., Hengyang Pref., Hunan Province, China Size:…

Agate - Morocco

Agate - Morocco Credit: Spiriferminerals .com Aesthetic, colorful agate from Morocco, polished on one side. Kerrouche…

Indicolite Tourmaline With a Large Pink Lepidolite

Gorgeous specimen of blue Indicolite Tourmaline with a large pink Lepidolite crystal to its right and a smaller Quartz cr…

What Is the Difference Between Phaneritic and Aphanitic Rocks?

What Is the Difference Between Phaneritic and Aphanitic Rocks. A hand specimen of granite with phaneritic (coarse grained…

Amazing Blue Sapphire

Today's Luxury eye Candy is just awesome, it's this Blue Sapphire weighing 72.9 cts from Graves Hill, Australia…

Green Epidote Clusters Quartze

Great, aesthetic specimen of green epidote clusters on white, sharp quartzes. Great contrast and form. Specimen mount…

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 time to separate (calle…

Incredible Spray of Azurite Crystals

Credit: The Mineral Gallery, Inc Incredible specimen featuring a dramatic spray of Azurite crystals with ps to Mal…

What Causes the Plates Tectonic to Move?

Let's play with some numbers. Assume that average continental crust weighs in at about 10 cubic feet to the ton. …

How Does Bowen's Reaction Series Relate to the Classification of Igneous Rock?

The Bowen reaction series is a description of how magma's minerals change as they cool. It’s a means of ranking com…

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 that they cooled from a magma…