Specs
- Common Names
- Mora
- Scientific Name
- Mora excelsa, M. gonggrijpii
- Origin
- Northeastern South America (primarily Guyana and Suriname)
- Appearance
- Heartwood is light to medium reddish brown. Wide pale yellow-brown sapwood is clearly demarcated from heartwood. Has a straight to interlocked grain, with a medium to coarse texture. Good natural luster. Endgrain: Diffuse-porous; large pores in no specific arrangement, few; solitary and radial multiples of 2-3; heartwood deposits present; narrow rays faintly visible without lens, normal spacing; parenchyma vasicentric,lozenge, winged, confluent, and marginal.
- Avg. Dried Weight
- 63 lbs/ft3 (1,015 kg/m3)
- Janka Hardness
- 2300 lbf
- Modulus of Rupture
- 22,550 lbf/in2 (155.5 MPa)
- Elastic Modulus
- 2,790,000 lbf/in2 (19.24 GPa)
- Crushing Strength
- 11,950 lbf/in2 (82.4 MPa)
- Shrinkage
- Radial: 6.7%, Tangential: 9.9%, Volumetric: 17.7%, T/R Ratio: 1.5
- Durability
- Mora is rated as durable to very durable, and also has good resistance to insect attacks.
- Workability
- Pieces with interlocked grain can be difficult to work, frequently resulting in tearout during machining operations. Mora also has a pronounced blunting effect on cutting edges.
