Articles

Magnetite - the Iron King

Magnetite - the Iron King

Magnetite is an iron rich mineral from the spinel group. It is the most important industrial source of iron and a natural ferromagnetic substance. Magnetite is common, but it is a very nice and interesting mineral.

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Graphite - the Writing Stone

Graphite - the Writing Stone

Graphite is a very important mineral, although it is not much to look at. It has a lot of uses in the world today, and it may be closer to you than you think! It is a direct opposite of its close relative, diamond.

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Munich Show 2015

Munich Show 2015

Munich show is the largest show in the Europe and visited by many international dealers. Many nice worldwide specimens were available as well as many minerals from European collectors. It is also a nice place to meet friends from all over the world.

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Malachite - the Copper Green

Malachite - the Copper Green

Brilliant green color makes malachite a very popular and widely-recognized stone. Bright color, aesthetic specimens and reasonable price make this interesting mineral very popular among collectors.

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Halite - the Rock Salt

Halite - the Rock Salt

Halite may not be very well-known by its official name, but it is more easily recognized as naturally-occurring salt. This common rock salt can form incredible crystals and even huge salt caves in nature.

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Calcite - the Master of Shapes

Calcite - the Master of Shapes

Of all sedimentary minerals, calcite is probably the most widespread, contributing a full 2 % to the volume of the Earths crust. It occurs in endless crystal forms with many different colors. With such variety it is not surprising that some collectors specialize on calcite alone.

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Agate - the Banded Gemstone

Agate - the Banded Gemstone

Agate is a beautiful and very popular gemstone that is widely recognized for its unique and varied colors and banding. It is a type of microcrystalline quartz that is commonly used as an affordable alternative to pricey gemstones in jewelry. It may also be carved into figures or statues, or used in handles for knives.

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Chalcopyrite - the Peacock Ore

Chalcopyrite - the Peacock Ore

Chalcopyrite is the most important copper ore, and it is the primary source of many popular secondary copper minerals. It can occur in a variety of environments and forms, from hydrothermal veins to sedimentary layers. Nice chalcopyrite crystals are highly sought after by collectors.

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Chalcedony - the Chameleon Gemstone

Chalcedony - the Chameleon Gemstone

Chalcedony is very variable and versatile stone and occurs in many environments. It was used since prehistoric times for stone tools and became one of the most used gemstones. Despite its abundancy, chalcedony still has some secrets.

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Galena - the Lead glance

Galena - the Lead glance

Galena, historically also named lead glance, is among the most abundant sulfides. Nice crystals and clusters of galena are almost every mineral collection. But this common mineral has some interesting features and it source for many beautiful secondary minerals.

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