[Amber_lv]

here is a pic of a silky and one of a yorkie from the akc site

also definition of yorkie:
Yorkshire Terrier Breed Standard
Toy Group

General Appearance
That of a long-haired toy terrier whose blue and tan coat is parted on the face and from the base of the skull to the end of the tail and hangs evenly and quite straight down each side of body. The body is neat, compact and well proportioned. The dog's high head carriage and confident manner should give the appearance of vigor and self-importance.
Head
Small and rather flat on top, the skull not too prominent or round, the muzzle not too long, with the bite neither undershot nor overshot and teeth sound. Either scissors bite or level bite is acceptable. The nose is black. Eyes are medium in size and not too prominent; dark in color and sparkling with a sharp, intelligent expression. Eye rims are dark. Ears are small, V-shaped, carried erect and set not too far apart.
Body
Well proportioned and very compact. The back is rather short, the back line level, with height at shoulder the same as at the rump.
Legs and Feet
Forelegs should be straight, elbows neither in nor out. Hind legs straight when viewed from behind, but stifles are moderately bent when viewed from the sides. Feet are round with black toenails. Dewclaws, if any, are generally removed from the hind legs. Dewclaws on the forelegs may be removed.

Tail
Docked to a medium length and carried slightly higher than the level of the back.

Coat
Quality, texture and quantity of coat are of prime importance. Hair is glossy, fine and silky in texture. Coat on the body is moderately long and perfectly straight (not wavy). It may be trimmed to floor length to give ease of movement and a neater appearance, if desired. The fall on the head is long, tied with one bow in center of head or parted in the middle and tied with two bows. Hair on muzzle is very long. Hair should be trimmed short on tips of ears and may be trimmed on feet to give them a neat appearance.

Colors
Puppies are born black and tan and are normally darker in body color, showing an intermingling of black hair in the tan until they are matured. Color of hair on body and richness of tan on head and legs are of prime importance in adult dogs, to which the following color requirements apply:

Blue: Is a dark steel-blue, not a silver-blue and not mingled with fawn, bronzy or black hairs.

Tan: All tan hair is darker at the roots than in the middle, shading to still lighter tan at the tips. There should be no sooty or black hair intermingled with any of the tan.

Color on Body
The blue extends over the body from back of neck to root of tail. Hair on tail is a darker blue, especially at end of tail.

Headfall
A rich golden tan, deeper in color at sides of head, at ear roots and on the muzzle, with ears a deep rich tan. Tan color should not extend down on back of neck.

Chest and Legs
A bright, rich tan, not extending above the elbow on the forelegs nor above the stifle on the hind legs.

Weight
Must not exceed seven pounds.
And the Silky
General Appearance
The Silky Terrier is a true "toy terrier". He is moderately low set, slightly longer than tall, of refined bone structure, but of sufficient substance to suggest the ability to hunt and kill domestic rodents. His coat is silky in texture, parted from the stop to the tail and presents a well groomed but not sculptured appearance. His inquisitive nature and joy of life make him an ideal companion.

Size, Proportion, Substance
Size - Shoulder height from nine to ten inches. Deviation in either direction is undesirable. Proportion - The body is about one fifth longer than the dog's height at the withers. Substance - Lightly built with strong but rather fine bone.

Head
The head is strong, wedge-shaped, and moderately long. Expression piercingly keen, eyes small, dark, almond shaped with dark rims. Light eyes are a serious fault. Ears are small, V-shaped, set high and carried erect without any tendency to flare obliquely off the skull. Skull flat, and not too wide between the ears. The skull is slightly longer than the muzzle. Stop shallow. The nose is black. Teeth strong and well aligned, scissors bite. An undershot or overshot bite is a serious fault.

Neck, Topline and Body
The neck fits gracefully into sloping shoulders. It is medium long, fine, and to some degree crested. The topline is level. A topline showing a roach or dip is a serious fault. Chest medium wide and deep enough to extend down to the elbows. The body is moderately low set and about one fifth longer than the dog's height at the withers. The body is measured from the point of the shoulder (or forechest) to the rearmost projection of the upper thigh (or point of the buttocks). A body which is too short is a fault, as is a body which is too long. The tail is docked, set high and carried at twelve to two o'clock position.

Forequarters
Well laid back shoulders, together with proper angulation at the upper arm, set the forelegs nicely under the body. Forelegs are strong, straight and rather fine-boned. Feet small, catlike, round, compact. Pads are thick and springy while nails are strong and dark colored. White or flesh-colored nails are a fault. The feet point straight ahead, with no turning in or out. Dewclaws, if any, are removed.

Hindquarters
Thighs well muscled and strong, but not so developed as to appear heavy. Well angulated stifles with low hocks which are parallel when viewed from behind. Feet as in front.

Coat
Straight, single, glossy, silky in texture. On matured specimens the coat falls below and follows the body outline. It should not approach floor length. On the top of the head, the hair is so profuse as to form a topknot, but long hair on the face and ears is objectionable. The hair is parted on the head and down over the back to the root of the tail. The tail is well coated but devoid of plume. Legs should have short hair from the pastern and hock joints to the feet. The feet should not be obscured by the leg furnishings.

Color
Blue and tan. The blue may be silver blue, pigeon blue or slate blue, the tan deep and rich. The blue extends from the base of the skull to the tip of the tail, down the forelegs to the elbows, and half way down the outside of the thighs. On the tail the blue should be very dark. Tan appears on muzzle and cheeks, around the base of the ears, on the legs and feet and around the vent. The topknot should be silver or fawn which is lighter than the tan points.

Gait
Should be free, light-footed, lively and straightforward. Hindquarters should have strong propelling power. Toeing in or out is to be faulted.

Temperament
The keenly alert air of the terrier is characteristic, with shyness or excessive nervousness to be faulted. The manner is quick, friendly, responsive.