Hilarionite is a very rare hydrated iron hydroxyarsenate sulphate, unique to this mine in the famous old district of Lavrion. This species was approved at the end of 2011. In this good-sized specimen, the hilarionite appears as botryoidal aggregates formed by small crystals, with a more intense greenish-yellow hue in some areas. The specimen was acquired by Erich Laskowsky from Anastasios Tsinidis, a well-known "strahler" (quartz hunter) of Greek origin. A fine piece from the type locality for the species.

Divergent aggregates of aragonite crystals, very aesthetic, brilliant and transparent to translucent. They are disposed on a matrix with goethite. Aragonite specimens from Lavrion are prized by collectors for their aesthetics.

Divergent aggregate of aragonite crystals, very aesthetic, brilliant and transparent to translucent. They are disposed on a matrix with goethite. Aragonite specimens from Lavrion are prized by collectors for their aesthetics.

A brilliant group of botryoidal smithsonite aggregates. Translucent, pearly luster, white to colorless. On a goethite matrix. Classic locality.

A brilliant group of botryoidal smithsonite aggregates. Translucent, pearly luster, white to colorless. On a goethite matrix. Classic locality.

Rich group of aragonite crystals forming an aesthetic and shiny rosette. A specimen of great aesthetic, unusual for this mine and in collections. A classic Greek locality. From a former collection, which label will be send to the buyer.

A very aesthetic specimen formed by estalactitic calcite aggregates (called cat's tail) of several acute crystals. Showing a snowy white color, brilliant and disposed on a goethite matrix. It is accompanied by small crystals of rhombohedral opaline calcite.

A rich specimen of serpierite showing fan-shapped aggregates of lath-like crystals. They show an intense sky blue color, good transparence and brightness. Serpierite crystals are covering the limonitic matrix. Their quality is really good very visible under magnifying glass. Accompanied by spherical aggregates of malachite and some crusts of azurite. A specimen with good size and quality for the species.

The specimen is very rich in fan-shapped aggregates of lath-like serpierite crystals. They show an intense sky blue color, good transparence and exceptional brightness. Serpierite crystals are covering cavities of the limonitic matrix. Their quality is excellent and under magnifying glass their beauty and aesthetics are superb. Accompanied by spherical aggregates of malachite and some crusts of azurite. A specimen with good size and quality for the species.