Citrine Crystal on matrix - Height: 5 cm - Width: 14.5 cm- 500 g - (2)

Two stunning minerals that make excellent prominent centerpiece pieces in an interior, as meditation stones, or as valuable additions to a mineral collection. It concerns Kundalini Citrine crystal on matrix (500 grams) and Galena and quartz mineral cluster hydrothermal combination (810 grams).

RIGHT
Impressive and completely natural quartz cluster of substantial size and weight. This authentic mineral is known in the gemstone world under the commercial name Kundalini Citrine (or Congo Citrine) and is recognizable by its cathedral or candle-quartz growth form. Here the larger, central crystal points at the base are elegantly surrounded by smaller, parallel upward crystal terminations. The cluster shows a beautiful natural color gradient ranging from clearly transparent to a soft, warm amber and smoky brown tone. This specific hue is the result of natural traces of iron and background radiation that were embedded deep in the earth during the millions of years-long growth process.

This specimen comes from the mineral-rich region around Luena, located in Haut-Lomami Province in the Democratic Republic of Congo. The authenticity of this locality is confirmed by the geological structure of the underside. The matrix consists of a robust, untreated mother rock that is covered with a characteristic, sponge-like ocher to rust-brown crust of limonite and iron oxide. This unique contrast between the rough earthly base and the shiny, mostly intact crystal points at the top makes the object a particularly fascinating and honest natural product. Geologically, the quartz deposits in this Congolese region are hundreds of millions of years old and date back to ancient mountain-building phases.

With a weight of exactly 500 grams and generous dimensions of 5 centimeters in height, 14.5 centimeters in length and 10 centimeters in width, this is a solid display piece of substantial hand size. The cluster has a flat underside that makes it easy to position and is perfectly suited as a prominent centerpiece in an interior, as a meditation stone, or as a valuable addition to a mineral collection. On the side there is also a discreet sticker label with collection number 20, indicating provenance from a previously catalogued private collection. This unheated and untreated top piece is in very nice natural condition with sharp, well-defined crystal faces.

Dimensions: 5x14.5x10 cm
Weight: 500 g

LEFT
This high-quality and aesthetic mineral cluster is a classic hydrothermal combination specimen, consisting of perfectly crystallized galena and quartz, complemented by fine inclusions of pyrite and secondary iron oxides. The display piece has a substantial weight of 810 grams and generous dimensions of 7.2 by 14.5 by 10 centimeters, a so-called cabinet specimen of substantial size. The base of this cluster is formed by a massive matrix of lead-gray galena, which shows strikingly beautiful cubic and octahedral crystal faces with a strong metallic luster. Over this lead ore, in a later geological phase, a complex bed of hexagonal quartz crystals formed. These hexagonal crystals range from clear white to semi-transparent, darkening toward the core in the direction of smoky quartz. On the sides there is a characteristic beige, porous weathering crust resulting from the natural oxidation of iron sulfides, giving the piece authentic geological depth.

Geologically, the ore layers from which this piece originates were formed during hydrothermal processes in the Miocene, giving the crystals an age of roughly 10 to 15 million years. Qualitatively and visually, this cluster carries the unmistakable signature of the famous polymetallic mining regions in Southeastern Europe, and it was most likely mined between the 1970s and early 2000s in the Baia Mare district of Romania or the historical Trepča mine in Kosovo. The cluster is in an excellent, representative condition with largely intact crystal points and offers a beautiful three-dimensional contrast between the dark sulfides and the lighter quartz. It is a very valuable and decorative addition to any serious mineral and gemstone collection.

Dimensions: 7.2x14.5x10 cm
Weight: 810 g