Description
Grade A Celestine with Calcite – Darai Laman, Badghis Province, Afghanistan
This Grade A Celestine specimen with Calcite is a genuine natural mineral piece from Darai Laman in Badghis Province, Afghanistan. The photograph shows the exact specimen you will receive, carefully chosen for its crystal definition, colour and matrix contrast. Full sizing details are available in the listing photos for accurate scale reference.
Each specimen includes a Certificate of Authenticity lifetime guarantee generic card, confirming it as a genuine natural mineral example.
Mineral Identification & Crystal Classification
Celestine, also known as Celestite, is a strontium sulfate mineral with the chemical formula SrSO₄. It belongs to the sulfate mineral group and crystallises in the orthorhombic crystal system. Celestine commonly forms prismatic, tabular or bladed crystals, often in clusters or geode-like formations.
The characteristic pale blue to sky-blue colour of Celestine is caused by trace impurities within the crystal lattice. Colour intensity can vary from nearly colourless to deeper blue tones, sometimes displaying subtle zoning within individual crystals. Celestine exhibits a vitreous to pearly lustre and is typically transparent to translucent.
Calcite, present on this specimen, is a calcium carbonate mineral (CaCO₃) belonging to the carbonate group and crystallising in the trigonal system. Calcite commonly forms rhombohedral or scalenohedral crystals and may appear white, colourless or slightly translucent. The combination of blue Celestine with contrasting Calcite matrix enhances the specimen’s visual appeal.
Geological Formation & Locality
Celestine forms primarily in sedimentary environments, particularly within limestone and evaporite deposits where strontium-rich fluids precipitate sulfate minerals. Over geological time, mineral-rich waters deposit Celestine crystals within cavities or fractures in sedimentary rock.
The Darai Laman region in Badghis Province, Afghanistan, is known for producing well-formed Celestine specimens with attractive blue colouration. Geological conditions in this region have allowed for the development of clear, defined crystals often associated with Calcite and other evaporite minerals.
Calcite commonly forms alongside Celestine in carbonate-rich sedimentary settings, where calcium and strontium-bearing solutions interact during mineral deposition. The coexistence of these two minerals reflects the chemical environment of formation.
Physical Characteristics & Display Quality
This Grade A specimen displays:
- Natural pale to medium blue Celestine crystals
- Defined orthorhombic crystal habit
- Contrasting Calcite matrix
- Vitreous lustre and natural transparency
- Untreated, natural mineral formation
Celestine has a Mohs hardness of 3 to 3.5, meaning care should be taken during handling to preserve crystal edges. Natural inclusions or minor surface imperfections are typical and reflect authentic geological growth.
No dyes, coatings or artificial enhancements have been applied. The colour and structure are entirely natural.
Collector, Educational & Decorative Appeal
Celestine with Calcite from Afghanistan is sought after by mineral collectors due to its attractive colour contrast and well-formed crystal clusters. It is suitable for:
- Mineral and crystal collections
- Cabinet display specimens
- Educational geology study sets
- Sulfate mineral collections
- Unique natural stone gifts
The combination of sulfate and carbonate minerals in one specimen provides educational value for those studying mineral associations and sedimentary geology.
In spiritual traditions, Celestine has been traditionally associated with themes of calm and clarity. These associations are cultural interpretations and are not presented as scientific or medical claims.
Authenticity & Assurance
- 100% genuine natural Celestine (SrSO₄) with Calcite (CaCO₃)
- Sourced from Darai Laman, Badghis Province, Afghanistan
- Orthorhombic sulfate mineral with carbonate association
- Grade A collector specimen
- Includes Certificate of Authenticity lifetime guarantee generic card
- The exact specimen shown in the photographs is the one you will receive
This Grade A Celestine with Calcite specimen represents a striking example of blue strontium sulfate crystal growth within a carbonate matrix, valued for its geological significance and refined display appeal.
