Description
OPALISED MARCASITE CRYSTAL SPECIMEN
This Grade A opalised marcasite crystal specimen is identified with Indonesia and the Miocene age designation. Its presentation is especially suited to collectors who appreciate unusual mineral appearances, natural geological specimens and display pieces with visual character. The specimen is photographed under backlighting to highlight its colours and translucence, allowing the material’s appearance to be viewed in a way that ordinary front lighting may not fully reveal.
MINERALOGICAL FEATURES
Marcasite is a naturally occurring iron sulphide mineral and is recognised scientifically as a different mineral species from pyrite, despite their related composition. Marcasite is commonly associated with metallic lustre and distinctive crystal forms, while opalised material is valued for the way silica-rich opal influences the appearance of the original mineral material. In this specimen, the supplied identification is presented as opalised marcasite, combining the geological interest of marcasite with the visual qualities associated with opalised textures.
The Miocene designation places the specimen within a recognised period of the Cenozoic Era. Miocene geological materials are studied as records of changing environments, sedimentation and mineral formation during a significant interval of Earth history. This age information adds educational and classification interest for collectors who catalogue specimens according to geological time as well as mineral identification.
LOCALITY INFORMATION
The recorded locality is Mount Cidolog, Pasanggrahan, Sagaranten, Sukabumi Regency, West Java, Indonesia. This locality information provides an important part of the specimen’s collecting and cataloguing context. Indonesian mineral specimens are widely appreciated by collectors for their varied natural appearances and regional geological interest, making locality-labelled material suitable for educational collections, mineral displays and geology-themed interiors.
BACKLIT PRESENTATION
Backlighting is a useful way to examine translucent mineral and opalised material. It can reveal variations in tone, areas of light transmission and colour effects that are less apparent when a specimen is viewed only from the front. The product presentation specifically highlights colours and translucence, making the piece suitable for a display arrangement where lighting can be positioned behind or around the specimen. Full sizing is shown in the photographs.
COLLECTING AND DISPLAY
This specimen can be included in a mineral cabinet, a geology classroom collection, a natural history display or a decorative arrangement focused on crystals and geological materials. Its identification, Miocene age designation and Indonesian locality make it suitable for collectors who value labelled specimens with documented classification details. It may also appeal to gift buyers looking for a distinctive mineral specimen for someone interested in geology, crystallography, natural history or Earth science.
AUTHENTICITY AND PHOTOGRAPHY
This Crystal is a genuine specimen and Includes a Certificate of Authenticity lifetime guarantee generic card.
The photograph shows the actual specimen you will receive.
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