International Minerals #27

A sharp terminated zepter in light smoky color, and it is even doubly terminated and complete all around. No damage. Ex Heinrich Prager collection.

Rare material from this very uncommon locality. The Mount Bonnie mine was discovered in the early 1900s, it produced copper, lead, zinc and gold and finally closed around 15 years ago. It has produced only a small number of fine specimens like this one. The piece features several sharp, highly lustrous crystals in yellowish and olive-green colours scattered on dark, almost black matrix. Great contrast, very aesthetic and in excellent condition.

I can´t rank high enough for rarity! It is THE only classic locality in Europe that has produced precious opal of relevance. There is lot of opal with green, blue, violet and even red flashes. Depending on the angle you look at it you will discover more and more details of this rare specimen. Ex Heinrich Prager collection.

Although these crystals are not so eye-catching as their well known, famous intense orange cousins, they are much rarer and very hard to obtain. This creamy, pale yellow color is very special and unique, should be high ranked for its rarity. The largest crystal shows an exceptional diameter of 21 mm. Ex Heinrich Prager collection.

A spectacular cluster of intense green fluorite crystals featuring modified crystal habit. They show excellent translucency - only minor backlight helps to expose a wonderful range of colors, small bits of yellow are also present.