Prasinit from Iran

Listed in our range under Granite.

Golden Lightning

Golden Lightning (also Iran Golden Green Granite, Iran Golden Lightning Granite or Golden Moss Granite) is an exceptionally dramatic Iranian prasinite from Birjand in the province of South Khorasan, with a moss-green to sage-green ground mass shot through with powerful golden-yellow to rust-brown "lightning" streaks — hence the marketing name. Exceptionally high-strength (200 MPa compressive strength, 17.5 MPa flexural strength) and low in water absorption (0.17 %) — used for premium kitchen worktops, designed feature bar counters, wall claddings, floor coverings and expressive interior and external surfaces with a dramatically green-golden statement character.

Petrographisch handelt es sich um einen Prasinit — ein metamorphes Gestein aus dem paläozoischen Grundgebirge bei Birjand in der Provinz Süd-Khorasan im östlichen Iran (DNSA #6265). Im Steinhandel und im Bauwesen seit Jahren als Granit geführt, da das technische Verhalten dem klassischer Granite entspricht (Druckfestigkeit 200 MPa, Wasseraufnahme 0,17 %, frost- und säurebeständig). Der Name Prasinit leitet sich vom griechischen „prasinos" (lauchgrün) ab und bezeichnet die charakteristisch grüne Mineralzusammensetzung mit Albit, Chlorit, Epidot und Aktinolith.

Prasinit Iran 2.700 kg/m³
Available as: Slabs

Other trade names: Golden Lighting, Golden Lightning Granite, Golden Lightning Prasinit, Golden Moss Granite, Iran Golden Green Granite, Iran Golden Lightning Granite, Khatam Morvarid Granite

About Golden Lightning

Golden Lightning is an exceptionally striking Iranian metamorphic dimension stone from the quarry district around the city of Birjand in the province of South Khorasan in eastern Iran — a region that ranks among the geologically most interesting dimension stone supply regions of Iran. In contrast to the internationally established Iranian travertine supply regions of Kashan and Maku, the Birjand region produces exceptional metamorphic hard stones from the Palaeozoic basement — among them the characteristic prasinite delivered to the international market under the marketing name "Golden Lightning". The marketing name refers to the dramatic golden-yellow to rust-brown veining that darts across the green ground mass like bolts of lightning. Its identity is confirmed by DNSA (#6265) as an Iranian prasinite. On the international market the stone is listed under several parallel trade names: Golden Lightning, Iran Golden Green Granite, Iran Golden Lightning Granite and Golden Moss Granite. In the stone trade it is traditionally listed as a granite — a convention established on the international market for high-strength exotic hard stones, even though prasinite is petrographically a metamorphic rock.

In stock

Current availability from our warehouse.

Technical data

Guide values for the stone type, taken from manufacturer and test reports. Natural stone is a natural product — individual batches and slabs can differ. For critical applications, request slab-specific test data.

Rohdichte 2.700 kg/m³
Druckfestigkeit 200,0 MPa
Biegezugfestigkeit 17,5 MPa
Wasseraufnahme 0,17 %

Finishes

Golden Lightning is available in a range of finishes. The finish affects appearance, feel and the care it needs.

Poliert

Politur ist im Schiefersegment selten — wenn vorhanden, eine glänzende Oberfläche mit ausgeprägter Farbintensität und kontrastreicher Mineralwirkung. Da Schiefer schichtig aufgebaut ist, kann die Politur stellenweise nur mattglänzend wirken. Eine designorientierte Veredelung für gestaltete Sichtflächen mit Statement-Charakter.

Satiniert

Die Oberfläche wird gebürstet — weichere Minerale werden gezielt entfernt, es entsteht eine subtile Tiefe mit mattem Erscheinungsbild. Eine zurückhaltende Veredelung, die die schieferspezifische Schichtung in eleganter Mattigkeit zeigt. Pflegeleichter als die polierte Variante und alltagstauglich.

Care & fabrication

As an Iranian prasinite (metamorphic dimension stone), Golden Lightning is exceptionally easy to care for and extraordinarily robust — its mineralogy makes the stone insensitive to lemon juice, vinegar, wine, cola and all household acids, which distinguishes it favourably from marbles and limestones. Indoors, warm water with a pH-neutral stone cleaner is sufficient for daily cleaning; aggressive household cleaners and abrasive sponges are unnecessary. On polished kitchen worktops, sealing with a solvent-based sealer suitable for hard stones is recommended after installation and every 2 to 3 years thereafter, in order to reduce the uptake of oil, grease and intensely coloured foods in the long term. Given the dark green ground tone, light pigment traces are less visible than on light stones — the granite-equivalent robustness makes the stone a low-maintenance choice for intensive everyday applications. Soiling should nevertheless be taken up promptly. Outdoors, regular cleaning with clear water and occasionally a soft brush is sufficient; where green growth appears in shaded locations, commercially available algae and moss cleaners can be used. Hot pans can be set down directly on the worktop — Golden Lightning is heat-resistant. De-icing salt in winter does not harm the stone and can be used.

Frequently asked questions

What is a prasinite and how does it differ from granite?

Prasinite is a specific class of metamorphic rock formed by low-grade metamorphosis of basic volcanic parent rocks. The name derives from the Greek "prasinos" (leek-green) and denotes the characteristically green colouring produced by mineral components such as albite, chlorite, epidote and actinolite. Unlike granite (a plutonic igneous rock), prasinite is metamorphic in origin — the mineral composition and material characteristics differ accordingly. In the stone trade, prasinite is traditionally marketed as "granite", because its technical behaviour corresponds to that of classic granites.

What does the designation "Golden Lightning" mean?

The marketing name "Golden Lightning" refers to the dramatic golden-yellow to rust-brown veining that darts across the green ground mass like bolts of lightning. This lightning look is the defining characteristic of the stone and matches the marketing name perfectly. Golden Lightning, Iran Golden Green Granite, Iran Golden Lightning Granite and Golden Moss Granite are synonymous trade names for one and the same Iranian prasinite from Birjand.

Is Golden Lightning suitable for kitchen worktops?

Outstandingly so. Its granite-equivalent properties — resistance to lemon juice, vinegar and wine, high compressive strength (200 MPa), low water absorption (only 0.17 %), heat resistance and high flexural strength (17.5 MPa) — qualify Golden Lightning without reservation for intensively used kitchen worktops. The spectacular green-gold look with the lightning veining makes it a statement choice for designer kitchens seeking a nature-like, dramatic material character. Sealing after installation and every 2 to 3 years thereafter is recommended.

What are the golden-yellow veins?

The characteristic golden-yellow to rust-brown veins that dart across the green ground mass like lightning were formed by secondary iron-oxide-mineralised solutions that penetrated tectonic fracture zones during the metamorphic history of the stone. These iron oxide mineralisations — predominantly goethite and haematite components — produce the warm golden to rust-brown tonalities and are the iconic defining characteristic of the material.

Is Golden Lightning suitable for bookmatch installation?

Outstandingly so. With mirror-image laying of adjacent slabs, the dramatic lightning veining creates particularly impressive, almost surreal symmetrical large-scale patterns — bookmatch installation makes Golden Lightning one of the most spectacular statement materials for wall claddings, bar counter back walls and prestige feature walls in the highest interior architecture. The template and slab selection should be sampled before installation in order to achieve the optimal symmetry of the lightning patterns.

Which slab formats are usual for Golden Lightning?

Standard large formats from the Iranian quarries typically lie between 280 × 160 cm and 300 × 180 cm in thicknesses of 2 cm and 3 cm. Through ROSSITTIS, special thicknesses (1 cm and 1.5 cm for lightweight wall claddings, 4 cm and more for stairs, paving and massive applications) can also be sourced. Because of the high slab variation, slab sampling is particularly important with Golden Lightning — the specific slab should be assessed before installation, since each one is a unique piece with its own lightning composition.

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