Verified origin: Bidasar, Churu district, Rajasthan. Udaipur is where they are processed, not where they are quarried.
That correction is the most useful sentence in this post, and it is a correction we made to our own records. An earlier version of our documentation said "Udaipur / Kesariyaji". Field verification and the web audit both place the quarries at Bidasar in Churu district, several hundred kilometres north, and we changed it.
Some field notes describe Bidasar as "near Sikar". That is a mislabel too — Bidasar is in Churu.
Why the correction matters commercially
Udaipur is a processing city. An enormous amount of Rajasthani stone passes through it, gets sawn and polished there, and leaves with Udaipur attached to it in someone's paperwork.
Processing location is not origin. A supplier who tells you Rainforest comes from Udaipur is describing the factory they bought it from, not the quarry. That is the difference between a supply chain and a purchase history, and it is exactly the distinction that a German certification scheme or a Dutch TruStone due-diligence process will ask you about.
The family
Three related stones from the same Bidasar belt, and one cousin:
Rainforest Green — deep green ground with cream, white and darker green veining running in dense, tangled, forest-like patterns. Aliases: Bidasar Green, Verde Bosque, Antique Green.
Rainforest Brown — the same structure in warm brown, russet and cream. Aliases: Bidasar Brown, Rainforest Oro.
Rainforest Gold — the warmest of the three, with gold and amber dominating. Aliases: Bidasar Gold, Rainforest Oro Gold.
Spider Green — from Gogunda in the Udaipur belt, processed in Udaipur. A Bidasar-family stone with a similar tangled structure. Aliases: Verde Spider, Indian Spider Green.
The handling clause — this is not optional
Rainforest marble is serpentine and brittle. It is one of the most fragile commercial stones India exports, and it is routinely supplied net-backed — a fibreglass mesh bonded to the reverse to hold the slab together.
That is not a defect and it is not a downgrade. It is how the stone is made shippable. But it must be disclosed on the specification, and the order must carry a handling clause, because:
- The mesh means the slab is only as strong as the bond
- Fabrication requires different tooling and slower feeds than a granite
- Installation requires full support, not point support
- Thin sections — a vanity front, a narrow return — need backing
- The slab must be carried and stored vertically, always
The clause to put in your order:
Material to be supplied net-backed with the backing method disclosed. Slabs to be crated vertically with full-face foam protection and no steel banding in contact with the face. Fabricator to be advised of serpentine handling requirements. Supplier accepts no liability for breakage arising from flat storage or point support.
That last sentence protects both parties and is the sort of thing an honest supplier volunteers.
Where it belongs
Feature walls and bookmatched panels. The primary and best use. Rainforest bookmatched across a large wall is one of the most striking things in the stone business.
Fireplace surrounds.
Reception desks and bar fronts, front panels only, with a harder stone on top.
Bathroom feature walls and vanity fronts.
Tabletops, with a supported substrate.
Flooring — possible, with care, in low-traffic residential settings. Not in commercial circulation.
Where it does not belong: kitchen worktops, external applications, floors that carry traffic, and anywhere it will be knocked. It is a decorative stone.
Bookmatching
Rainforest is bought bookmatched almost by default. For four-way or six-way matches you need consecutive slabs from one block, sequenced, numbered on the slab edge, and shipped in one container.
Order the whole match at once. A bookmatch completed from a second shipment is not a bookmatch. And because Bidasar blocks are not enormous, the number of matched slabs one block yields is limited — ask for the figure before you design a wall around it.
Grading
Pattern density. How tangled the veining runs. Denser reads busier and more dramatic.
Colour saturation. Green blocks vary from a deep bottle green to a lighter sage; brown from russet to a paler tan.
Fissure content. Serpentine stone is fractured by nature. The acceptable level must be agreed against a physical range panel, and the resin and mesh treatment disclosed.
Backing quality. Ask what mesh and what resin. On a bookmatched wall you will see the back of nothing, but the backing determines whether the slab survives fabrication.
Logistics
Ships ex-Mundra or Kandla, being a Rajasthan stone.
Packing is the highest-risk part of a Rainforest order. Specify:
- Vertical crating, never flat stacking
- Full-face foam, not corner-only
- No steel banding in contact with the face
- Bookmatched sets crated together and marked as a set
- Desiccant inside the wrap
- Loading photograph set before documents are released
See Sea Packing for Natural Stone.
What to ask a supplier
- Where is this quarried? The answer is Bidasar, Churu. If they say Udaipur, they are describing the factory.
- How many matched slabs does this block yield, in total?
- What is the backing — mesh type and resin — and is it disclosed on the spec?
- Sealed range panel for pattern density and colour saturation.
- How is it crated? Vertical, full-face foam, set-marked.
- Will you supply the loading photograph set before documents?
- Can you supply the handling clause in writing for onward transmission to my fabricator?
What Gemarix does differently
We corrected our own origin record on this family and we publish the correction. Rainforest Green, Brown and Gold are Bidasar, in Churu district — not Udaipur, which is processing only, and not "near Sikar", which is a mislabel.
We disclose the net-backing and supply the handling clause with the quotation rather than after a breakage. On a stone this fragile, the honest specification is the product.
Frequently Asked Questions
Where is Rainforest marble quarried?
At Bidasar in Churu district, Rajasthan. Udaipur is where the stone is cut and polished, not where it comes out of the ground, and a supplier who tells you Udaipur is describing the factory they bought it from rather than the quarry.
Why is Rainforest marble supplied net-backed?
Because it is a serpentine stone and genuinely brittle, among the most fragile commercial stones India exports. A fibreglass mesh bonded to the reverse is what makes it shippable. That is not a defect, but it must be disclosed and it changes how the slab is fabricated and installed.
Can Rainforest marble be used for worktops or floors?
No. It is a decorative stone for feature walls, bookmatched panels, fireplace surrounds, reception desks and bar fronts. It should not go on kitchen worktops, external applications, trafficked floors, or anywhere it will be knocked.
How many matched slabs will one block yield?
Ask before you design a wall around it. Bidasar blocks are not enormous, so the number of consecutive bookmatched slabs is limited, and a bookmatch completed from a second shipment is not a bookmatch.
What are Rainforest marble's international names?
Rainforest Green is sold as Bidasar Green, Verde Bosque and Antique Green. Rainforest Brown is sold as Bidasar Brown and Rainforest Oro. Rainforest Gold is sold as Bidasar Gold.