Grade A Opalised Marcasite Crystal Miocene Indonesia West Java Specimen

Description

Product Overview

This Grade A Opalised Marcasite crystal specimen is identified as Miocene and associated with Mount Cidolog, Pasanggrahan, Sagaranten, Sukabumi Regency, West Java, Indonesia. It is presented as a collectible mineral and geological specimen for crystal collections, display cabinets, study areas, or distinctive home décor. The product name highlights the specimen’s opalised marcasite character, while the photography is designed to show the colours and translucence visible when the piece is backlit.

Mineral and Geological Details

Marcasite is a recognised iron sulfide mineral that commonly occurs in crystalline forms and is distinct in structure from pyrite, although the two minerals share the same chemical composition. In this specimen, the marcasite is identified as opalised, indicating the descriptive material combination used for this collector piece. The supplied age designation is Miocene, a geological interval within the Neogene Period. This classification places the specimen within a geological context associated with rocks and deposits formed during that interval, without assigning an unsupported formation or specific geological process.

The recorded locality is Mount Cidolog, Pasanggrahan, Sagaranten, Sukabumi Regency, West Java, Indonesia. Locality information is an important part of mineral collecting because it provides geographical context for cataloguing, comparison and display. The West Java setting also makes this an appealing addition to collections focused on Indonesian minerals, regional geology or unusual mineral appearances.

Appearance and Backlit Display

The product title specifically notes that the backlit photograph highlights colours and translucence. Viewing a translucent specimen against a light source can reveal variations in light transmission and visual depth that may be less apparent under ordinary room lighting. Colours and translucence can vary according to the viewing angle and illumination, so the photographs provide the most useful reference for the appearance of the individual piece offered.

This specimen can be displayed on its own as a natural geological object or incorporated into a broader collection of minerals, crystals and fossil-era material. Its Miocene designation, Indonesian locality and opalised marcasite identification provide useful catalogue details for collectors who value both visual character and geological labelling.

Photography and Sizing

The photograph shows the actual specimen you will receive.

Full sizing is shown in the photographs.

Please review the images carefully for the specimen’s visible shape, surface character, colour presentation and translucence. The backlit view is especially useful for appreciating the optical appearance described in the product name. Photographs should be considered alongside the written identification when selecting this geological display piece.

Authenticity

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