black diamond
Tough ski trail
Black diamond has two primary meanings.
In skiing, it marks an expert-level slope—the most difficult trails are double black diamonds.
In jewelry and mineralogy, black diamond refers to carbonado, a dark, opaque form of diamond used industrially and increasingly in jewelry: Her engagement ring featured a black diamond.
The ski sense dominates casual usage.
Dark industrial-grade gem
- facetPlane on cut stone
- carat200 milligrams exactly
- cutSeverance or reduction
- clarityState of being understandable
brilliance · sparkle · inclusion · setting · jewelry · luster · fire · scintillation
Highly skilled practitioner
- slopeAngled terrain or steepness
- trailPath through wilderness
- mogulInfluential industry leader
- steepRising at sharp angle
alpine · descent · piste · terrain · resort · mountain · backcountry · freeride
Superficial wound or mark
- durabilityResistance to wear
- toughnessResilient durability under strain
- abrasionShallow surface wound
- resistanceCapacity to withstand force
industrial · polycrystalline · impervious · drill bit · cutting tool · grinding · adamantine · rigid
Highest-grade coal variety
- high-gradeOf superior quality
- carbonSixth element, atomic symbol C
- combustibleCapable of burning
- fossil fuelEnergy from decomposed organisms
mining · energy · sedimentary · bituminous · fuel · extraction · lustrous · hard coal
carbonado
Dark industrial-grade gem
clarity · brilliance · sparkle · inclusion · setting · jewelry · luster · fire · scintillation · treated
expert
Highly skilled practitioner
steep · alpine · descent · piste · terrain · resort · mountain · backcountry · freeride · snowboard
scratch
Superficial wound or mark
- durabilityResistance to wear
- toughnessResilient durability under strain
- abrasionShallow surface wound
resistance · industrial · polycrystalline · impervious · drill bit · cutting tool · grinding · adamantine · rigid · dense
anthracite
Highest-grade coal variety
- high-gradeOf superior quality
- carbonSixth element, atomic symbol C
- combustibleCapable of burning
fossil fuel · mining · energy · sedimentary · bituminous · fuel · extraction · lustrous · hard coal
exclusive
Limited to one group
high-end · upscale · sophistication · elegance · refinement · opulence · rare · desirable · status · affluent
- black mineralsgraphite, obsidian, onyx, jet, galena
- skiingskiing, ski, ski resort, ski slope, ski slopes
- ski resortski lodge, ski lessons, chairlift, gondola, ski lift
- Ski tripskis, poles, ski poles, boots, ski boots
- black thingscoal, soot, tar, onyx, ebony
- bramblesblackberry, raspberry, dewberry, boysenberry, loganberry
black diamondgreen circle
Beginner difficulty indicator
bunny slope · beginner trail · easy run · green run · blue square
black diamondbeginner-friendly
Easy for newcomers
entry-level · novice class · accessible · easy access · introductory