Tags » Geology

Orbicular Jasper

311 Orbicular Jasper –  – also called Ocean Jasper, is a variety of Jasper which contains variably-coloured orbs or spherical inclusions or zones. In highly silicified Rhyolite or Tuff, Quartz and Feldspar form needle-like crystals which provide the orbicular structure seen in this kind of Jasper.


Green Calcite

378 Green Calcite –  – Calcite is a white or colourless mineral consisting of calcium carbonate. It is a major constituent of sedimentary rocks such as Limestone and is deposited in caves to form stalactites and stalagmites.


Mica Schist

534 Mica Schist – 28g & 75x30x12mm – a metamorphic rock containing Quartz and Mica which resembles Slate in being easily split.


The Crater That's Been Burning For Over 45 Years

In the Karakum desert there’s a natural gas crater that was ignited to prevent the spread of methane and has been burning ever since

In 1971 in the Karakum desert Soviet geologists started to drill at the site where they tapped into a cavern filled with natural gas. 338 more words


A fascinating article regarding a new theory about the formation of Earth.

\sin-es-ti-ə \ n.

A large spinning hunk of hot, vaporized rock that forms when rocky, planet-sized objects collide

Earth may have taken on a jelly doughnut shape early in its history. 123 more words


Indian Spotted Agate

313 Indian Spotted Agate – 21g & 28x20x30mm – Agate is the name given to numerous varieties of banded Chalcedony, a mineral of the Quartz family. 23 more words


Blue Sodalite

351 Blue Sodalite –  – is a rich royal blue tectosilicate mineral widely used as an ornamental gemstone. Although massive Sodalite samples are opaque, crystals are usually transparent to translucent.