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.

Petrographically this is a prasinite — a metamorphic rock from the Palaeozoic basement near Birjand in the province of South Khorasan in eastern Iran (DNSA #6265). It has been listed in the stone trade and in construction as granite for years, because its technical behaviour corresponds to that of classic granites (compressive strength 200 MPa, water absorption 0.17 %, frost- and acid-resistant). The name prasinite derives from the Greek “prasinos” (leek green) and denotes the characteristic green mineral composition with albite, chlorite, epidote and actinolite.

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, RO-05-011

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.

22 slabs in stock · plus 2 blocks

Thicknesses: 2 cm · Finishes: Polished, Satin-honed · Available as: Slabs

Updated daily from our live stock.

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.

Polished

A polish is rare in the slate segment — where available, it is a glossy surface with pronounced colour intensity and a contrast-rich mineral effect. Because slate has a layered structure, the polish can appear only satin-gloss in places. A design-led finish for designed feature surfaces with statement character.

Satin-honed

The surface is brushed — softer minerals are selectively removed, creating a subtle depth with a matte appearance. A restrained finish that shows the layering typical of slate in an elegant matte quality. Easier to maintain than the polished variant and suited to everyday use.

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.

What does Golden Lightning cost?

The price depends on the batch, thickness, surface finish and fabrication — with natural stone there is no serious flat rate per square metre. Business customers see prices once their B2B account is activated; private customers receive a complete quote through a fabricator near them.

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