- Geode (Wikipedia)
A geode (/ˈdʒiː.oʊd/; from Ancient Greek γεώδης (geṓdēs) ’earthlike’) is a geological secondary formation within sedimentary and volcanic rocks. Geodes are hollow, vaguely spherical rocks, in which masses of mineral matter (which may include crystals) are secluded. The crystals are formed by the filling of vesicles in volcanic and subvolcanic rocks by minerals deposited from hydrothermal fluids; or by the dissolution of syn-genetic concretions and partial filling by the same or other minerals precipitated from water, groundwater, or hydrothermal fluids.
- Cape Alava (Wikipedia)
Cape Alava is a cape in the Pacific Northwest region of the United States. Located in Clallam County, Washington. The cape is situated within Olympic National Park and the Makah Indian Reservation, and is accessible via a 3-mile (5 km) boardwalk hike from a ranger station in the park.