Grade A Opalised Marcasite Crystal Specimen Indonesia Miocene Backlit Photo Highlights Colours & Translucence

Description

Grade A Opalised Marcasite Crystal Specimen

This listed mineral specimen is identified as Grade A Opalised Marcasite, with a Miocene designation and an Indonesian locality. Its presentation is especially suited to collectors interested in unusual mineral appearances, natural crystal materials and geological specimens with distinctive colour and light response. The opalised character is highlighted by the specimen’s translucence, while the marcasite identification provides its principal mineralogical classification.

Colour, Translucence and Backlit Appearance

The supplied product name specifically highlights colours and translucence when photographed with backlighting. Light passing through suitable areas can make the specimen’s visual character easier to examine, bringing attention to colour variation and internal light transmission shown in the product photography. Backlit viewing is also useful for appreciating the contrast between more opaque portions and areas where light is visible through the material. As with any natural mineral specimen, the appearance may vary slightly according to viewing angle and lighting conditions.

Identification and Geological Context

Marcasite is a recognised iron sulfide mineral, and the specimen is identified here as opalised marcasite. Opal is a naturally occurring hydrated silica material, and the term opalised describes the character stated for this specimen without assigning an unsupported formation process. The supplied additional identification is Miocene, a recognised interval of the Cenozoic geological era. This designation places the listed material within a geological context associated with rocks and mineral occurrences formed during the Miocene, while no further formation details are assigned here.

Locality Information

The stated locality is Mount Cidolog, Pasanggrahan, Sagaranten, Sukabumi Regency, West Java, Indonesia. This locality information is included as supplied and gives the specimen a specific regional context for mineral collecting and geological display. Indonesian mineral specimens are widely appreciated for the variety of natural materials represented in collections, and this piece offers a documented locality label for a display case, study shelf or personal mineral collection.

Collecting and Display

This opalised marcasite specimen can be displayed as a standalone geological object or alongside other mineral specimens to compare colour, surface character and translucence. It is suitable for collectors, students of mineralogy, natural-history enthusiasts and gift buyers seeking a genuine-looking specimen presentation supported by an authenticity card. The Grade A classification is part of the supplied product identification.

Sizing and Photography

Full sizing is shown in the photographs. The photograph shows the actual specimen you will receive. Please use the images to assess the specimen’s visible shape, proportions, colour presentation and backlit appearance before purchase.

Certificate of Authenticity

This Crystal is a genuine specimen and Includes a Certificate of Authenticity lifetime guarantee generic card.