Two small gold mines in Mariposa county, the Mockingbird and the Colorado Quartz, intermittently produce world-class ( and very expensive ) specimens of crystalline gold for mineral collectors.

alt = Two dull silver clusters of crystalline shards.

Two optical resonators constructed from crystalline sapphire, controlling the frequencies of two lasers, were set at right angles within a helium cryostat.

Two beams with identical wavelength and phase approach a crystalline solid and are scattered off two different atoms within it.

Two very useful ways for modifying a form-dictionary are the addition to the dictionary of complete paradigms rather than single forms and the application of a single change to more than one dictionary form.

Two thirds of the chemical elements occur on Earth only as compounds, and in the remaining third, often the compound forms of the element are most common.

Two forms of the game, association croquet and golf croquet, have rules that are agreed internationally and are played in many countries around the world.

Two main forms of deism currently exist: classical deism and modern deism.

Two most common forms of engine cooling are air-cooled and water cooled — most modern engines are water cooled.

Two forms of nanomedicine that have already been tested in mice and are awaiting human trials are using gold nanoshells to help diagnose and treat cancer, and using liposomes as vaccine adjuvants and as vehicles for drug transport.

The dance is also known as " Two Step " and was " one of the most popular forms of contemporary social dance " as a Disco Couples Dance in 1978.

Two major forms are Platonic realism ( universalia ante res ) and Aristotelian realism ( universalia in rebus ).

Two encapsulated forms of PPP, Point-to-Point Protocol over Ethernet ( PPPoE ) and Point-to-Point Protocol over ATM ( PPPoA ), are used most commonly by Internet Service Providers ( ISPs ) to establish a Digital Subscriber Line ( DSL ) Internet service connection with customers.

Two forms of plasma ashing are typically performed on wafers.

Two Russian cities with powerful merchant class — Novgorod and Pskov — also adopted republican forms of government in 12th and 13th centuries, respectively, which ended when the republics were conquered by Moscow at the end 15th-beginning of 16th century.

A variety of techniques are used by Number Two to try to extract information from Number Six, including hallucinogenic drug experiences, identity theft, mind control, dream manipulation, and various forms of social indoctrination.

Two forms of electric flux are used, one for the E-field:

Two major forms are Platonic realism and Aristotelian realism.

Two forms of this are shown below:

Two major forms of it are the so-called T-V distinctions and honorifics.

Two other tree forms are notable in Western Australia and described using the native names " mallet " and " marlock ".

Two forms of chosen-plaintext attack can be distinguished:

Two forms of blood tests are commonly done:

* Robert Magliola, Phenomenology and Literature ( Purdue University Press, 1977 ; 1978 ) systematically describes, in Part One, the influence of Husserl, Heidegger, and the French Existentialists on the Geneva School and other forms of what becomes known as " phenomenological literary criticism "; and in Part Two describes phenomenological literary theory in Roman Ingarden and Mikel Dufrenne.

Two of the shows they did for station WENR beginning in 1927, both written by Harry Lawrence, bore traces of what was to come and rank as one of the earliest forms of situation comedy.

Two leading forms of direct democracy are participatory democracy and deliberative democracy.

Two rivers run through Bracknell Forest: the River Blackwater forms the borough ’ s southern boundary, and the Cut meanders through the northern parishes.

The park forms part of the Two Peoples Bay and Mount Manypeaks Important Bird Area, identified as such by BirdLife International because of its significance in the conservation of several rare and threatened bird species.

Two further leases exist in Hemming's Cartulary as copies only.

Two rail lines exist, both originating in Phnom Penh and totaling about 612 kilometers of metre gauge single track.

Two common types of employee crime exist: embezzlement and sabotage.

Two contradictory accounts exist of how Kidd reacted to his encounter with Culliford.

Two approaches exist for this:

Two Pacific Ocean populations are known to exist: one of not more than 130 individuals ( according to the most recent population assessment in 2008 ) whose migratory route is presumed to be between the Sea of Okhotsk and southern Korea, and a larger one with a population between 20, 000 and 22, 000 individuals in the eastern Pacific travelling between the waters off Alaska and Baja California Sur.

Two sizes of primer pocket uniformer tools exist, the larger one is for large rifle ( 0. 130-inch nominal depth ) primer pockets and the smaller one is used for uniforming small rifle / pistol primer pockets.

Two major views of the relationship exist, namely New Covenant theology and Dual-covenant theology.

Two philosophical underpinnings of love exist in the Chinese tradition, one from Confucianism which emphasized actions and duty while the other came from Mohism which championed a universal love.

Two full-time militarized armed forces exist under the control of the Department of the Interior.

Two minor political parties exist but are legally bound to accept the ruling role of the WPK.

Two main groups of polymers exist: synthetic polymers and biopolymers.

Two copies of the pamphlet exist in the British Museum.

Two prominent sources do exist for Urban's pontificate: Eusebius ' history of the early Church and also an inscription in the Coemeterium Callisti which names the Pope.

Two ports of Quake for the Nintendo DS exist, QuakeDS and CQuake both run well however multiplayer does not work anymore for QuakeDS.

Two mechanisms to ensure that a stem cell population is maintained exist:

Two sets of rules exist, each of which can be played with a variety of layouts.

Two different tribes exist, " river Zora " are more violent and are able to shoot fire, while " sea Zora " make up the friendly Zoras.

Two types of triage exist: simple and advanced.

Two other versions exist, Object-Oriented Turing and Turing Plus, a systems programming variant.

Two versions exist of how Lennon met Ono.

Two officially supported compilers exist: a commercial product, CodeWarrior Development Studio for Palm OS, and an open source tool chain called prc-tools, based on an old version of gcc.

Two types of circuits exist: permanent virtual circuits ( PVCs ) which are used to form logical end-to-end links mapped over a physical network, and switched virtual circuits ( SVCs ).