Migmatit

Listed in our range under Granite.

Kinawa Brazil

Kinawa Brazil is an expressive Brazilian migmatite of the granite trade family from the Candeias / Campo Belo quarrying area in Minas Gerais — a Precambrian hard rock with a characteristically flowing, irregularly cloudy band structure, a pale grey-cream groundmass with subtle pink-red accents and black directional biotite cloud structures. Also traded internationally as Kinava and Oceano; used for external facades, floor areas, stairs, bar counters, kitchen worktops, window sills, skirtings, terrace slabs and prestige building applications with a warm migmatitic character.

Kinawa Brazil ist petrographisch ein präkambrischer Migmatit (DNSA Stein 0011) — ein metamorpher Hybrid-Gesteinstyp mit Leukosom/Melanosom-Struktur. Im internationalen Handel wird der Stein traditionell als 'Granit' geführt, weil er in Verarbeitung und mechanischen Eigenschaften wie ein klassischer Hartstein gehandhabt wird. Bei ROSSITTIS klassifizieren wir Kinawa Brazil handelsüblich in der Granit-Familie gemäß weit verbreiteter Trade-Konvention für brasilianische Hartstein-Migmatite. DNSA-Hauptname: KINAVA, Alias: OCEANO.

Migmatit Brazil 2.640 kg/m³

Available as: Slabs, Skirting, Paving slabs, Tiles and flooring slabs

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About Kinawa Brazil

Kinawa Brazil shows an exceptionally characterful Brazilian migmatite character with a flowing, cloudy band structure. The groundmass is a pale whitish, creamy grey matrix with subtle pink, rose-red accents and directional black biotite cloud structures. The migmatitic band structure flows in irregular, gently undulating patterns across the slab surface — like frozen currents or converging clouds. Characteristic is the mixture of pale quartz- and feldspar-rich melt layers (leucosome) and dark biotite-rich residual portions (melanosome) with the typical warm pink accents — a rare combination that gives Kinawa Brazil its characteristic material effect. With a polished finish the stone develops a rich depth with clearly legible migmatitic movement. Its mineralogical composition is exceptionally well documented: 40 % plagioclase feldspar, 35 % quartz, 20 % microcline (potassium feldspar) and 4 % biotite — a classic migmatite mineralogy with a balanced crystalline structure.

Geologically, Kinawa Brazil is a Precambrian migmatite from the Brazilian state of Minas Gerais. The quarries lie in the Candeias and Campo Belo region, one of the significant hard rock provinces of South America. Petrographically it is a metamorphic hybrid rock type with a leucosome/melanosome alternation. The DNSA dimension stone records list the material under entry 0011 with the principal name KINAVA and the alias OCEANO. Several synonyms circulate in international trade: Kinava (the original DNSA name), Oceano (the DNSA alias — referring to the flowing, sea-like band structure), Kinawa Granite and Brazilian Kinawa. The ROSSITTIS qualifier 'Brazil' is used to distinguish the stone clearly from any other Kinawa trade variants of differing origin. The DNSA expressly documents that the stone is 'frequently used in Germany'.

Technically, Kinawa Brazil shows exceptionally strong values: bulk density 2,640 kg/m³, compressive strength 191 MPa (very high), compressive strength after frost 194 MPa (NO loss of strength — a slight improvement is even possible, indicating excellent frost resistance), flexural strength an exceptional 19.3 MPa (well above typical granite values), water absorption only 0.09 % (extremely low), porosity 0.23 % (very low), modulus of elasticity 58.81 GPa, abrasion resistance 0.58 (Italian standard — very hard), Mohs hardness 6–7. Full frost and acid resistance is confirmed for this silicate rock — wine, lemon juice, vinegar or bathroom cleaners leave no etch marks as they would on marble or limestone. The stability of the polish outdoors is permanent (DNSA: 'durable outdoors'). Kinawa Brazil is therefore fully capable in everyday use for the most demanding internal and external applications, including prestige external facades with a preserved polished gloss and heavily frequented public floor areas.

ROSSITTIS carries Kinawa Brazil as a raw slab in 10, 20, 30 and 40 mm thicknesses (standard thicknesses plus solid applications for stairs or paving), as tiles for floor and wall applications, as treads and risers, terrace slabs, skirtings and for project-specific cutting. The finishes currently available from stock are listed in the »Finishes« block further down this page.

Compared with other Brazilian migmatites, Kinawa Brazil is a balanced choice: Juparana Colombo (a related Brazilian banded gneiss with a similar band structure) is stronger in colour; Multicolor Guayana (a Venezuelan migmatite) is more expressive; Multicolor Rot Funil (a Brazilian migmatite) is redder; Kinawa Bahia (a possibly related variant) may differ. Within the Brazilian migmatite family, Kinawa Brazil is a distinctive choice with warm pink accents and a flowing sense of movement. For architectural projects with a warm migmatitic material effect — external facades with a warm character, paving, bar counters in Mediterranean, migmatite-inspired restaurants, living spaces with a classically warm material effect and building applications with high weathering stability — Kinawa Brazil is a dependable and expressive choice within the warm Brazilian migmatite range.

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 2.640 kg/m³

Druckfestigkeit 191,0 MPa

Biegezugfestigkeit 19,3 MPa

Wasseraufnahme 0,09 %

Säurebeständig Nein

Finishes

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

Poliert

Politur ist die klassischste Veredelung im Hartgesteinsegment — eine spiegelglatte, hochglänzende Oberfläche mit höchstmöglicher Farbintensität und maximaler Tiefenwirkung der Mineralstruktur. Als säurebeständiges Silikatgestein ist polierter Granit pflegeleicht und für Küchenarbeitsplatten, Wandverkleidungen und repräsentative Sichtflächen erste Wahl.

Geflammt + 1 x gebürstet

Die Oberfläche wird durch Hitze aufgeraut und einmal gebürstet, um scharfkantige Mineralreste zu glätten und loses Material zu entfernen. Etwas sanftere Haptik als rein geflammt, weiterhin rutschhemmend, Farbe weniger intensiv als poliert. Standardwahl für Außenbereiche, Terrassen und stark beanspruchte Bodenflächen.

Care & fabrication

As a Brazilian migmatite, Kinawa Brazil is an exceptionally robust hard rock with extremely low water absorption (0.09 %), confirmed frost and acid resistance (DNSA) and very high compressive and flexural strength. Wine, lemon juice, vinegar, cola, bathroom cleaners or descalers leave no etch marks as they would on marble or limestone — the stone is markedly easier to look after and is ideally suited to intensive everyday use.

For internal applications we recommend sealing on a silane or polysiloxane basis at first installation. With its exceptionally low water absorption, Kinawa Brazil is practically non-absorbent — the sealer serves as additional insurance. On polished surfaces, refreshing it every 8–10 years is sufficient; on heavily used kitchen worktops or external applications, check it every 3–5 years.

Routine care is with a pH-neutral natural stone cleaner and a soft cloth or microfibre mop. Clear warm water is usually sufficient. Acidic cleaners are not in themselves a problem, but should nevertheless be avoided because they can attack the sealer. The finishes currently available from stock are listed in the »Finishes« block further down this page.

For kitchen worktops, Kinawa Brazil is outstandingly suited: cut- and scratch-resistant (Mohs hardness 6–7), insensitive to heat (hot pots and pans can be set down directly for short periods, though prolonged heat exposure above 200 °C should still be avoided), acid-resistant and with excellent stain repellency thanks to its extremely low water absorption. The high flexural strength (19.3 MPa) makes the stone particularly suitable for long slab overhangs on kitchen islands or bar counters.

For external applications, Kinawa Brazil is particularly well qualified: the DNSA-confirmed durability of the polish outdoors, the extremely low water absorption (0.09 %) and the excellent frost resistance (NO loss of strength after frost) make the stone the first choice for demanding external facades with a preserved gloss and exposure to frost and de-icing salt. Polished external facades retain their brilliance for years.

For pool surrounds, external terraces and fountain surrounds, a slip-resistant textured finish is mandatory — polished external surfaces present a high risk of slipping when wet. In areas with frequent salt contact we recommend refreshing the sealer every 3 years.

Frequently asked questions

What is Kinawa Brazil geologically?

Kinawa Brazil is a Precambrian migmatite from the Brazilian state of Minas Gerais. The quarries lie in the Candeias and Campo Belo region. Petrographically it is a metamorphic hybrid rock type with a leucosome/melanosome alternation. Mineralogical composition: 40 % plagioclase feldspar, 35 % quartz, 20 % microcline (potassium feldspar), 4 % biotite. The DNSA lists the material under entry 0011 with the principal name KINAVA and the alias OCEANO.

What synonyms are there?

In international trade, Kinawa Brazil also runs under the designations Kinava (the original DNSA name), Oceano (the DNSA alias — referring to the flowing, sea-like band structure), Kinawa Granite and Brazilian Kinawa. The ROSSITTIS qualifier 'Brazil' is used to distinguish the stone clearly from any other Kinawa trade variants.

What technical values does Kinawa Brazil have?

Exceptionally strong values: bulk density 2,640 kg/m³, compressive strength 191 MPa (very high), compressive strength after frost 194 MPa (NO loss of strength — excellent frost resistance), flexural strength an exceptional 19.3 MPa, water absorption 0.09 % (extremely low), porosity 0.23 %, modulus of elasticity 58.81 GPa, abrasion resistance 0.58 (Italian standard — very hard), Mohs hardness 6–7. The DNSA confirms a durable outdoor polish.

What does 'Oceano' mean as a DNSA alias?

The DNSA alias 'Oceano' (Italian/Portuguese for 'ocean') refers to the characteristic flowing, sea-like band structure of the material — the irregular cloud structures recall sea waves or currents. A very apt marketing description of its visual character. In German and international trade, however, the designation 'Kinawa' (or 'Kinava') has become established; 'Oceano' is used more rarely.

Is Kinawa Brazil suitable for a kitchen worktop?

Outstandingly suited — it is regarded as one of the best stones for kitchen worktops in the Brazilian migmatite range. With a Mohs hardness of 6–7, extremely low water absorption (0.09 %), very high compressive strength (191 MPa) and exceptional flexural strength (19.3 MPa), the stone is cut-, scratch- and heat-resistant and absorbs no acids from wine, lemon or vinegar. The high flexural strength qualifies the stone for long slab overhangs on kitchen islands.

What finishes are available in Kinawa Brazil?

The finishes currently available from stock are listed in the »Finishes« block on this page.

Is Kinawa Brazil suitable for external facades?

Outstandingly suited. The DNSA-confirmed durability of the polish outdoors, the extremely low water absorption (0.09 %) and the excellent frost resistance (NO loss of strength after frost) make the stone the first choice for demanding external facades with a preserved gloss. The DNSA expressly documents its frequent use in Germany — its long-term weathering stability has been proven over decades.

Where does Kinawa Brazil come from?

Kinawa Brazil comes from the Candeias and Campo Belo quarrying area in the Brazilian state of Minas Gerais — one of the most significant hard rock provinces of South America. The region supplies related selections such as Verde Forest/Verde Maritaca (serpentinitic) and other Brazilian migmatites and hard rocks.