An aquamarine crystal that shows some natural etching,giving it a rather corroded look and a complex termination consisting of tiny points.The whole crystal looks very icy, like an individual column of candle ice.
(Source: flickr.com)
Cluster of Aquamarine (Be3Al2(SiO3)6) crystals on Albite with Schorl Tourmaline
The Avshalom Cave
The Avshalom Cave was discovered by accident in May 1968 when an explosion opened a crack to reveal the magical and fantastic cave hidden beneath. According to geologists, the cave was formed around 25 million-years ago, when the mountainous range of the Judean Hills rose up above the surface of the water. The layers of limestone and dolomite rock were displaced and folded with time, forming cracks which allowed water to enter and dissolve some of the rock. While seeping through the cracks and flowing through the soil this water absorbed increasing amounts of carbon dioxide from the roots of the plants and the surrounding decay. This process that turns the water acidic is called “Karst” and helped with the cave expansion process.
Diamonds aren’t the rarest gems on Earth. In fact, they’re relatively common. The rarest gem is jadeite (NaAlSi2O6) and costs about $3 million per carat.
Rockyard Botryoidal Geode
Contains:
Agate (FL Blue >SW)
Chalcedony (FL Green >SW)
(Source: flickr.com)
